[Q]: Sentence: Polychaetes diversified in the early Ordovician, about 488 to 474 million years ago. Question: What era was underway 505 million years ago?
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[A]: no

[Q]: Sentence: An explicit definition consistent with this interpretation was first given in a paper by Bruce A. Wilcox commissioned by the International Union for the Conservation of Nature and Natural Resources (IUCN) for the 1982 World National Parks Conference. Question: Who commissioned the biodiversity research paper?
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[A]: yes

[Q]: Sentence: (A further problem was that no cutting heads were available that could handle the HF information. Question: How widespread was the success of CD-4 format?
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[A]:
no