[Q]: Sentence: In the past most drugs have been discovered either by isolating the active ingredient from traditional remedies or by serendipitous discovery. Question: Most drugs have been found by isolating what from traditional remedies?
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[A]: yes

[Q]: Sentence: Bermuda's culture is a mixture of the various sources of its population: Native American, Spanish-Caribbean, English, Irish, and Scots cultures were evident in the 17th century, and became part of the dominant British culture. Question: What is a lesser spoken, secondary language in Bermuda?
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[A]: no

[Q]: Sentence: He defined the politics of his generation and communicated directly with the public masses of the Arab world, bypassing the various heads of states of those countriesan accomplishment not repeated by other Arab leaders. Question: What have other Arab leaders been unable to do that Nasser was?
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[A]:
yes