[Q]: Sentence: " Essentially, investment banks and hedge funds used financial innovation to enable large wagers to be made, far beyond the actual value of the underlying mortgage loans, using derivatives called credit default swaps, collateralized debt obligations and synthetic CDOs. Question: What financial innovation enabled investment banks and hedge funds to make large wagers?
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[A]: yes

[Q]: Sentence: Hauts-de-Seine (37,303) departments and the new business-park centres appearing there. Question: What does south-eastern Val-de-Marne specialize in?
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[A]: no

[Q]: Sentence: Two days later on 23 June, she engaged two Indian Muslims as waiters, one of whom was Abdul Karim. Question: Who accused Karim of spying?
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[A]:
no