[Q]: Sentence: Investment banks on Wall Street answered this demand with products such as the mortgage-backed security and the collateralized debt obligation that were assigned safe ratings by the credit rating agencies. Question: What is an example of a product Wall Street invented to answer the demand for income generating investments?
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[A]: yes

[Q]: Sentence: An example that shows the spread of Greek theater is Plutarch's story of the death of Crassus, in which his head was taken to the Parthian court and used as a prop in a performance of The Bacchae. Question: Crassus' head is used a prop in what performance?
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[A]: yes

[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 are some names of derivatives?
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[A]:
yes