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Condensed Statements of Changes in Shareholders' Deficit (USD $)
6 Months Ended
Jun. 30, 2011
Shareholders’ deficit - opening balance $ (11,434,256)
Net gain for the period 4,861,386
Adjustment of redeemable Shares to redemption value (14,172,394)
Shareholders’ deficit - closing balance $ (20,745,264)