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Related Parties
12 Months Ended
Oct. 31, 2011
Related Parties [Abstract]  
Related Parties
7. Related Parties

The Sponsor is a related party of the Trust. The Sponsor oversees the performance of the Trustee and the Trust's principal service providers, including the preparation of financial statements, but does not exercise day-to-day oversight over the Trustee or the Trust's service providers.