<DOCUMENT>
<TYPE>EX-10
<SEQUENCE>10
<FILENAME>ex-10.txt
<TEXT>

                                                                      Exhibit 10


      INDENTURE OF TRUST made as of the 17th day of September, 2003, by and
between BARRY SILVERSTEIN, as Grantor, and MARK SHALE SILVERSTEIN and DENNIS
McGILLICUDDY, as Trustees.

                              W I T N E S S E T H :

      The Grantor hereby transfers, assigns and delivers to the Trustees the
property described in Schedule A annexed hereto (and the Trustees hereby
acknowledges receipt of such property), to hold the same, IN TRUST, to invest
and reinvest, to collect the rents, income and profits thereof, and to dispose
of the same upon the terms hereinafter set forth.

      The trust created herein shall be known as the "SUSAN S. POTTER 2003
CLAT."

                                      FIRST

      A. In each year of the "trust term" (as hereinafter defined), the Trustees
shall make payments aggregating the "annuity amount" (as hereinafter defined) to
The William James Foundation, Inc. (or, if The William James Foundation, Inc.
shall not be a "charitable organization" (as defined in Paragraph G below) at
the time of any payment hereunder, to such one or more charitable organizations
in such amounts or proportions, as the Trustees shall, in their sole and
unreviewable discretion, select and determine).

      B. The "trust term" shall mean the twenty (20) year period commencing on
the date hereof.

      C. The term "annuity amount" shall be such amount which shall be required
to generate a Federal gift tax charitable deduction equal to the value of the
initial net fair market value of the principal of such trust as finally
determined for Federal gift tax purposes, for the annuity which is to be paid
pursuant to the terms of Paragraph A above, as calculated using (a) the lowest

<PAGE>

Applicable Federal Rate promulgated by the Treasury Department for valuing
annuities which the Trustees may elect to use under Section 7520(a) of the
Internal Revenue Code of 1986, as amended (hereinafter referred to as the
"Code"), and (b) the procedures promulgated by the Treasury Department for
valuing annuities. In determining such initial net fair market value, the assets
of such trust shall be valued at the values finally determined therefor for
Federal estate tax purposes.

            If the initial net fair market value of the property contributed to
the trust created hereunder is incorrectly determined, then, within a reasonable
period after such net fair market value is finally determined, the Trustees
shall (in the case of an undervaluation) pay to or shall (in the case of an
overvaluation) receive from The William James Foundation, Inc. and/or the
charitable organization or charitable organizations, as the case may be, as
shall have received an incorrectly determined annuity amount, and if more than
one, in the proportions in which they shall have shared in such incorrectly
determined annuity amount, an amount equal to the difference between:

                        (a) any annuity amounts actually paid, plus interest,
            compounded annually, computed for any period at the rate of interest
            that the Federal income tax regulations under Section 664 of the
            Code prescribe for the trust for such computation for such period;
            and

                        (b) the annuity amounts payable, plus interest,
            compounded annually, computed for any period at the rate of interest
            that the Federal income tax regulations under Section 664 of the
            Code prescribe for the trust for such computation for such period.


                                       2
<PAGE>

      D. In case of any taxable year of the trust during the trust term which is
for a period of less than twelve months, the annuity amount for such year shall
be prorated on a daily basis.

      E. The Trustees shall make payments under Paragraph A above aggregating
the annuity amount annually. Any payment made during any taxable year of the
trust, or treated (at the election of the Trustees pursuant to Section 642(c)(1)
of the Code) for Federal income tax purposes as having been made during such
year, in satisfaction of the annuity amount, shall first be made from the
ordinary income (including short term capital gain) other than unrelated
business income of the trust for such year, thereafter from capital gains of the
trust for the year, thereafter from unrelated business income of such trust for
the year, thereafter from tax-exempt income and, if and to the extent that such
ordinary income, capital gains and unrelated business income and tax-exempt
income shall be insufficient to pay the annuity amount, then from the principal
of the trust. Any net income not required for the payment of the annuity amount
shall be added to principal.

      F. 1. It is the Grantor's intention that the twenty (20) year annuity
payable under this Indenture shall qualify as a deductible charitable interest
under Section 2522(c)(2)(B) of the Code and regulations thereunder and that the
Grantor shall be entitled to a charitable deduction for Federal gift tax
purposes for the full value, as of the date hereof, of such annuity. The Grantor
therefore directs that all provisions of this Indenture shall be interpreted and
construed so as to give effect to such intention and that the Trustees shall pay
all payments on account of the annuity amount at such times and in such amounts
and shall also otherwise administer the trust in such manner as may be required
to qualify such annuity for the aforesaid charitable deduction. If such Section
or regulations, or any successor Section or regulations, or any ruling, notice


                                       3
<PAGE>

or other administrative pronouncement issued thereunder, at any time requires
that an instrument creating a "guaranteed annuity interest" within the meaning
of Section 2522(c)(2)(B) of the Code and the regulations promulgated thereunder
must contain provisions that are not expressly set forth herein, such provisions
shall be incorporated into this Indenture of Trust by reference and shall be
deemed to be a part of this Indenture of Trust to the same extent as though they
had been expressly set forth herein. The Trustees shall have the power, acting
by majority, to amend the Trust created hereunder in any manner required for the
sole purpose of ensuring that the annuity amount payable under Article FIRST
hereof qualifies as a "guaranteed annuity interest" within the meaning of
Section 2522(c)(2)(B) of the Code and the regulations promulgated thereunder.

            2. If the effect of any provision of this Indenture would be to
prevent the allowance of said charitable deduction for such annuity, then the
Grantor directs that such offending provision shall not apply to the trust.

            3. Anything to the contrary in this trust notwithstanding, during
such time as the trust created hereunder shall be a trust described in Section
4947(a)(2) of the Code, the Trustees shall be prohibited from:

                        (i) engaging in any act of "self-dealing," as defined in
            Section 4941(d) of the Code;

                        (ii) retaining any "excess business holdings," as
            defined in Section 4943(c) of the Code;

                        (iii) making any investments so as to subject the trust
            to tax under Section 4944 of the Code, or retaining any investments
            which would subject the trust to such tax if the Trustees had
            acquired such investments; and

                        (iv) making any "taxable expenditures," as defined in
            Section 4945(d) of the Code.


                                       4
<PAGE>

            4. References to Sections of the Code in this Indenture shall also
be deemed to refer to corresponding provisions of any subsequent Federal tax
law.

            5. No additional contribution shall be made to the trust created
hereunder.

            6. Nothing contained in this Indenture shall be construed to
restrict the

Trustees from investing the assets of the trust in a manner which could result
in the annual realization of a reasonable amount of income or gain from the sale
or disposition of trust assets.

      G. The term "charitable organization" as used in this Indenture shall mean
an organization organized and operated exclusively for religious, charitable,
scientific, literary or educational purposes or for the prevention of cruelty to
children or animals as described in Sections 170(c), 501(c)(3) and 2522(a) of
the Code (or any corresponding provisions of the tax laws from time to time in
effect), gifts to which are deductible for Federal income and gift tax purposes.

                                     SECOND

            Upon the termination of the Term, the trust estate then remaining
(after making any payments required by Paragraph A of Article FIRST) shall be
paid over and distributed to such person or persons (including SUSAN SILVERSTEIN
POTTER, the estate of SUSAN SILVERSTEIN POTTER, her creditors and the creditors
of her estate) in such amounts or proportions and upon such estates (whether in
trust or otherwise) as SUSAN SILVERSTEIN POTTER shall appoint by instrument in
writing, duly signed and acknowledged by her and delivered to a then acting
Trustee (other than herself) during her lifetime, or in her Last Will and
Testament, by specific reference to this Indenture of Trust. The Grantor directs
that any portion or all of the trust estate that is not effectively appointed
shall be paid over and distributed to SUSAN SILVERSTEIN POTTER, absolutely, or


                                       5
<PAGE>

if she is not then living, to her then living issue, per stirpes, absolutely,
and in default of such issue, to the then living issue of the Grantor from his
marriage to Lois Silverstein, per stirpes, or if none, to the then living issue
of the Grantor, per stirpes, absolutely.

                                      THIRD

      A. 1. If DENNIS McGILLICUDDY shall cease to act as a trustee hereof, the
following are appointed as successor Trustees, to take office, singly, in the
order named: STEPHEN BLECHNER and JAMES B. SHEIN.

            2. Upon attaining the age of 40 years, SUSAN SILVERSTEIN POTTER
shall be allowed to qualify as a co-Trustee to act contemporaneously with the
then acting Trustees of the trust created hereunder, PROVIDED, HOWEVER, that if
SUSAN SILVERSTEIN POTTER shall so qualify, MARK SHALE SILVERSTEIN shall
immediately cease to act as a Trustee hereof.

            3. The last to act of the Trustees (including substitutes and/or
successors) herein named in respect of the trust hereunder and each of the
successors appointed as herein provided, is authorized and empowered to appoint
a successor Trustee, to take office upon such appointing Trustee ceasing to act
hereunder.

            4. The Grantor directs that any two of SUSAN SILVERSTEIN POTTER,
MARK SHALE SILVERSTEIN, and THOMAS BENJAMIN SILVERSTEIN, or if only one of them
shall then be living and competent, such one, acting alone, are authorized and
empowered, at any time and from time to time, (i) to appoint a successor Trustee
or a series of successor Trustees to fill any vacancy that may then exist or
thereafter arise in the office of Trustee hereunder, (ii) to increase the number
of Trustees acting as Trustees of the trust created herein by appointing one or
more additional co-Trustees, and (iii) to remove any Trustee, successor Trustee


                                       6
<PAGE>

or co-Trustee, other than SUSAN SILVERSTEIN POTTER, MARK SHALE SILVERSTEIN or
DENNIS McGILLICUDDY, at any time acting hereunder, PROVIDED, HOWEVER, that if
SUSAN SILVERSTEIN POTTER shall be acting as a Trustee of the trust created
herein, she shall not vote for the appointment of a person who is a "related or
subordinate party" within the meaning of Section 672(c) of the Code or any
successor provisions thereto with respect to herself.

      B. Any appointment of a successor Trustee or successor Trustees pursuant
to Paragraph A hereof shall be made by instrument in writing, duly signed and
acknowledged, and may from time to time prior to the qualification of the person
or persons therein designated, be revoked or amended by the person making such
appointment, similarly executed and acknowledged.

      C. In no event shall the Grantor, or any other person who has made a
contribution to the trust created hereunder, be appointed as a successor Trustee
hereunder.

      D. The term "Trustees" wherever used herein, shall be taken to mean the
Trustees for the time being in office; and except as otherwise provided in this
Article THIRD, each such Trustee shall have the same rights, powers, duties,
authority and privileges, whether or not discretionary, as if originally
appointed hereunder.

      E. No Trustee acting hereunder, whether named herein or appointed pursuant
hereto, shall be required to post any bond or other security for the faithful
performance of his or her duties hereunder.

                                     FOURTH

      A. The Trustees named herein hereby assume the trust created by this
Indenture of Trust and undertake to carry out each and every provision hereof.


                                       7
<PAGE>

      B. Any successor Trustee hereunder shall qualify by executing an
instrument in writing, duly signed and acknowledged, expressly agreeing to
assume the trust created by this Indenture of Trust and to carry out each and
every provision thereof.

      C. No Trustee acting hereunder shall incur any liability for any act done
or omitted in the exercise of his or her duties as Trustee in good faith.

                                      FIFTH

      A. Any Trustee acting hereunder, at any time, may resign his or her office
as Trustee by written declaration duly signed by him or her and delivered to the
successor Trustee designated to succeed such Trustee and to his or her
co-Trustees, if any. Such resignation shall become effective upon the date
specified therein.

      B. Any Trustee at any time acting hereunder, any resigned Trustee, and the
executor or administrator of the estate of any deceased Trustee, at any time and
from time to time, may render an account of the acts and transactions of such
Trustee with respect to the income and principal of the trust created hereunder
(from the date of the creation of such trust or from the date of the last
previous account of the Trustee, as the case may be) to The William James
Foundation, Inc. and to Susan Silverstein Potter, or if Susan Silverstein Potter
shall not then be living, to the then living issue of Susan Silverstein Potter,
or if none, to the Grantor's then living children of his marriage to Lois
Silverstein, or if none, to the Grantor's then living descendants of his
marriage to Lois Silverstein, or if none, to the Grantor's then living issue;
PROVIDED, HOWEVER, that if any such person to whom an account may be rendered
shall be a minor, any such account may instead be rendered to such person's
parent or legal guardian other than the Grantor or any Trustee hereunder. The
persons hereinabove described shall have full power and authority, on behalf of


                                       8
<PAGE>

all persons who may at any time be interested in such trust, finally to settle
and adjust such account; and upon such account being settled and adjusted, it
shall be final and conclusive upon each and every person (whether then living or
then ascertainable or not) who shall then or thereafter be or become interested
in either the income or the principal of such trust, with like effect as a
judgment of a court having jurisdiction, judicially settling such account in an
action in which the Trustee and all persons having or claiming to have an
interest in the trust were parties.

            Nothing contained in the foregoing paragraph shall be deemed to
preclude a Trustee from having his account judicially settled if such Trustee
shall deem this advisable.

      C. In any proceeding in which all persons interested in the trust
hereunder are required to be served with process, and in which a party to the
proceeding has the same interest as a person under a disability, it shall not be
necessary to serve the person under a disability, it being the Grantor's
intention hereof to avoid the appointment of a guardian ad litem, whenever
possible.

                                      SIXTH

      The Trustees are authorized, in their discretion and notwithstanding the
foregoing provisions of this Indenture of Trust:

      A. In any case in which they are authorized or required to pay or
distribute income or principal to any person who is a minor, to apply the whole
or part of such income or principal, in their absolute discretion, to the
minor's use in any one or more of the following ways:

            1. By depositing the same in a savings account in the minor's name
with any bank or trust company;


                                       9
<PAGE>

            2. By distributing the same to any person (other than a person who
has made a contribution to the trust), including a person acting as Trustee
hereunder, (i) as Custodian for such minor under any Uniform Gifts to Minors Act
or Uniform Transfers to Minors Act authorizing such payment; (ii) with whom the
minor shall at the time reside; or (iii) then having the care or control of such
minor;

            3. By paying the same to such minor or to any other person (other
than a person who has made a contribution to the trust), firm or corporation
(other than a firm or corporation controlled by a person who has made a
contribution to the trust) for the account and benefit of such minor.

            The Trustees, in any of the above cases, shall be under no
obligation to look to the proper application of any such payment or distribution
by the person receiving it. Any payment hereinabove authorized shall be a full
discharge to the Trustees with respect thereto.

            If the Trustees make a distribution to a custodian under
Subparagraph 2 above, they are authorized to make any election or designation
concerning the age at which the minor is to receive the property that may be
made under any applicable Uniform Gifts to Minors Act or Uniform Transfers to
Minors Act.

      B. To defer, in whole or in part, payment or distribution of any property
vesting absolutely in a minor hereunder, until such minor shall have attained
majority; to expend the same or any part thereof, and the income therefrom, for
the benefit of such minor in any manner hereinabove authorized in Paragraph A
hereof, holding the whole or the undistributed portion thereof, and the income
thereon, as a separate and distinct share for such minor, absolutely; and to
transfer, pay over and deliver any remaining principal and income held hereunder
to the minor when he or she attains majority, or to the estate of such minor if
he or she dies prior to attaining majority.


                                       10
<PAGE>

      C. For purposes of this Indenture of Trust, a "minor" shall be deemed to
be a person under the age of twenty-one years and "majority" shall be deemed to
be the age of twenty-one years.

                                     SEVENTH

      A. Subject to Paragraph F of Article FIRST hereof, the Trustees shall
have, with respect to any and all property at any time held by them hereunder
(including property held for the benefit of minors under Article SIXTH hereof)
the following powers, in addition to those conferred by law:

            1. To retain any such property as an investment without regard to
the proportion which such property, or property of a similar character, may bear
to the entire amount of the trust estate, whether or not such property is of the
class in which trustees are authorized by law or any rule of court to invest
trust funds.

            2. To sell any such property at either public or private sale, for
cash or on credit, and to exchange such property.

            3. To grant options for the purchase of any such property, upon any
terms and conditions, for any period or periods of time, even if the period
during which any such option shall be exercisable shall extend beyond the
probable duration of the trust hereunder.

            4. To invest and reinvest in property of any character, real or
personal, foreign or domestic, including, but without limiting the generality of
the foregoing, to acquire both short and long positions, in cash or on margin,
in bonds, notes, debentures, mortgages, common and preferred stock (irrespective
of whether there shall be a public market therefor), shares or interests in
investment trusts, general and limited partnership interests, and interests in
limited liability companies without being limited to the class of securities in
which trustees are authorized by law or any rule of court to invest trust funds


                                       11
<PAGE>

and without regard to the proportion which any such property or property of a
similar character held by the Trustees may bear to the entire amount of the
Trust estate or the speculative or unproductive nature of any such investment or
investments, and the Trustees shall be fully protected in respect of any such
investment made by them in good faith.

            5. To borrow money and give indemnities and guaranties for any
purpose in connection with the administration of the trust created hereunder, to
continue or renew any loan made to the Trustees and in connection therewith to
mortgage, pledge or otherwise encumber any property forming part of the trust
upon any terms and conditions, in any amounts, and for any period of time, even
if for longer than the probable duration of the trust.

            6. To lend any part of the trust, with or without security, in any
amount, upon any terms and conditions, at any reasonable rate of interest, for
any period or periods of time even if longer than the probable duration of the
trust, and to any person, firm or corporation other than the Grantor or the
Grantor's spouse or a firm or corporation owned or controlled by the Grantor
and/or the Grantor's spouse.

            7. To manage any real property held by the Trustees hereunder in the
same manner as if the Trustees were the absolute owners thereof, including,
without limitation, to lease, or grant options to lease, any such real property
for any term or terms, although in excess of any period permitted by statute or
other rule of law (and although any such term may extend beyond the period of
administration of any trust hereunder), without application to any court.

            8. To vote on any securities forming part of any trust by
discretionary proxy or otherwise; to join in or oppose any reorganization,
recapitalization, sale, lease, merger, exchange or consolidation; to exercise


                                       12
<PAGE>

conversion, subscription or other rights, or to sell or abandon such rights; to
receive and hold any securities issued as a result of any of the foregoing
transactions; and generally to take all action in respect of any such securities
as the Trustees might or could do as the absolute owners thereof.

            9. To deposit any securities with voting trustees or protective or
similar committees, to delegate to them discretionary powers, to pay a share of
their expense and compensation, and to charge the same to principal or income as
the Trustees may see fit.

            10. To cause any stocks, bonds, securities, cash or other property
at any time held by the Trustees to be registered in the name of a nominee or
nominees.

            11. To compromise, settle or arbitrate any claim in favor of or
against the trust hereunder.

            12. To determine whether, and, if so, to what extent, premiums on
investments shall be amortized.

            13. To make any distribution hereunder, in whole or in part, in
securities or other property comprising the principal of the trust at the time
of such distribution, and in making such distribution the Trustees shall not be
required to prorate any item of property so distributed among the persons
entitled to such distribution, but shall be authorized and empowered to
distribute different items of property to the distributees.

            14. To maintain on behalf of the trust hereunder one or more custody
accounts with any bank, trust company or brokerage firm wherever located, and to
retain investment counsel, investment advisers, accountants and attorneys
(including any firm of investment counsel, investment advisers, accountants or
attorneys with which the Trustees from time to time acting hereunder shall be
associated or otherwise connected) and to charge the cost thereof to the
principal or income of such trust as the Trustees may deem appropriate.


                                       13
<PAGE>

            15. To delegate any or all of the powers and authorities
hereinbefore conferred upon Trustees in Subparagraphs 1, 2 and 4 hereof, at any
time and from time to time, with respect to all or any portion of the property
held hereunder, to any one or more individual or institutional investment
advisers or investment managers for any period or periods and upon such terms,
conditions and for such compensation as the Trustees shall in their sole and
unreviewable discretion deem appropriate, it being expressly provided that the
Trustees shall have no responsibility or liability for any loss to the trust
hereunder by reason of any action taken or omitted to be taken as a result of
such delegation.

            16. To allocate and credit to income so much or all of any
distribution made by a regulated investment company or mutual fund that is
designated a "dividend" by such company or mutual fund, even though paid from
short-term capital gain or any source other than ordinary income.

            17. To determine whether any dividend, other than an ordinary cash
dividend, declared and paid upon any securities held by the Trustees, whether
payable in cash, in stock (issued by the corporation declaring the same or by
any other corporation), in bonds, or otherwise, shall be treated as and
allocable to principal or income, or partly to principal and partly to income,
and the Trustees shall not be required to treat any particular dividend in the
same manner as previous dividends upon the same or other securities, or to make
any determination on the basis of whether any particular dividend represents in
whole or in part a distribution of earnings or surplus regardless of when earned
or created. This provision shall be in lieu of any statute or applicable rule of
law now or hereafter in effect in the State of Florida.


                                       14
<PAGE>

            18. To exercise any other or further authority or discretion not
hereinabove specifically granted as may from time to time be permitted by
applicable statutes or rules of law, it being the Grantor's intention that the
foregoing powers shall be in addition to and shall not be deemed a limitation
upon such authority and discretion as the Trustees would have but for such
provisions.

      B. Persons dealing with the Trustees shall not be bound to see to the
application of any moneys paid to the Trustees pursuant to their exercise of any
of the foregoing powers.

                                     EIGHTH

      Whenever necessary or appropriate, the use herein of any gender shall be
deemed to include the other gender and the use herein of either the singular or
the plural shall be deemed to include the other.

                                      NINTH

      The trust hereby created shall be irrevocable, and neither the Grantor
nor, except as expressly provided in Subparagraph 1 of Paragraph F of Article
FIRST, any Trustee at any time acting hereunder shall have the right to change,
alter or amend any of the provisions thereof.

                                      TENTH

      The trust created hereunder shall be deemed to be a Florida trust and
shall be governed and construed in all respects by and in accordance with the
laws of the State of Florida. The Trustees, however, is prohibited from
exercising any power or discretion granted under said laws that would be
inconsistent with the qualification of the annuity amount payable under Article
FIRST hereof as a "guaranteed annuity interest" under Section 2522(c)(2)(B) of
the Code and the corresponding regulations.


                                       15
<PAGE>

      IN WITNESS WHEREOF, the Grantor signs, seals, publishes, and declares this
instrument to be an Irrevocable Trust Agreement and, for purpose of
identification, the Grantor has signed his initials on each page other than the
signature page, and the Grantor has signed his name, in the presence of the
persons witnessing this Trust Agreement, at the Grantor's request, on the day
and year first above written.

/s/ Jeffrey R. McCurdy              /s/ Barry Silverstein
-----------------------------       -----------------------------
Witness                             BARRY SILVERSTEIN


/s/ Randy Arnaud
-----------------------------
Witness


ACCEPTANCE BY TRUSTEES

                                    /s/ Mark Shale Silverstein
                                    -----------------------------
                                    MARK SHALE SILVERSTEIN


                                    /s/ Dennis McGillicuddy
                                    -----------------------------
                                    DENNIS McGILLICUDDY


                                       16
<PAGE>

STATE OF FLORIDA     )
                     ) SS:
COUNY OF             )

      We, BARRY SILVERSTEIN, Jeffrey R. McCurdy and Randy Arnaud, the Grantor
and the witnesses respectively, whose names are signed to the foregoing
instrument, having been sworn, declared to the undersigned officer that the
Grantor in the presence of witnesses signed the instrument as an Irrevocable
Trust Agreement, that the Grantor signed and that each of the witnesses, in the
presence of the Grantor and in the presence of each other signed the Agreement
as a witness.

                                          /s/ Barry Silverstein
                                          ----------------------
                                          BARRY SILVERSTEIN

                                          /s/ Jeffrey R. McCurdy
                                          ----------------------
                                          Witness

                                          /s/ Randy Arnaud
                                          ----------------------
                                          Witness

      Subscribed and sworn to before me by BARRY SILVERSTEIN, the Grantor, who
is personally known to me or who has produced _____________ as identification,
and by Jeffrey R. McCurdy, a witness, who is personally known to me or who has
produced ______________________ as identification, and byRandy Arnaud, a
witness, who is personally known to me or who has produced
_______________________ as identification, on this 17th day of September, 2003.

                                    /s/ Linnette A. Fauroat
                                    -----------------------
                                    Notary Public

[NOTARY SEAL]


                                       17
<PAGE>

STATE OF FLORIDA            )
                            ) ss.:
COUNTY OF                   )

      The foregoing instrument was acknowledged before me this 17th day of
September, 2003, by BARRY SILVERSTEIN , who is personally known to me or who has
produced __________________________ as identification.


                                    /s/ Linnette A. Fauroat
                                    -----------------------
                                    Name: Linnette A. Fauroat
[NOTARY SEAL]


STATE OF ENGLAND            )
                            ) ss.:
CITY OF LONDON              )

      The foregoing instrument was acknowledged before me this 2nd day of
October, 2003, by MARK SHALE SILVERSTEIN, who is personally known to me or who
has produced US Passport 700913975 as identification.


                                    /s/ Barrington William Hooke
                                    -----------------------
                                    Name: BARRINGTON WILLIAM HOOKE
                                          NOTARY PUBLIC, LONDON

                                        [NOTARY SEAL]

<PAGE>

STATE OF FLORIDA            )
                            ) ss.:
COUNTY OF SARASOTA          )

      The foregoing instrument was acknowledged before me this 22 day of
September, 2003, by DENNIS McGILLICUDDY, who is personally known to me or who
has produced __________________________ as identification.


                                    /s/ Christen Flenard
                                    -----------------------
                                    Name: Christen Flenard
[NOTARY SEAL]


</TEXT>
</DOCUMENT>
