[Q]: Sentence: Liquid H2 is used in cryogenic research, including superconductivity studies. Question: What research uses liquid H2?
++++++++++
[A]: yes

[Q]: Sentence: Moving past the Tucson Mountains, travelers find themselves in the area commonly referred to as "west of" Tucson or "Old West Tucson". Question: What interstate is the West side west of?
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[A]: no

[Q]: Sentence: As well, there was no spread of this doctrine within the New World and the advanced civilizations of the Aztec, Maya, Inca, Mohican, Delaware, Huron and especially the Iroquois. Question: Who was a great admirer of some of the methods of the Iroquois Confederacy?
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[A]:
no