[Q]: Sentence: The only remaining blockades to the use of PCR as a standard tool of diagnosis are in its cost and application, neither of which is insurmountable. Question: What are the remaining blockades to the use or PCR as a standard tool of diagnosis?
++++++++++
[A]: yes

[Q]: Sentence: " These words have since been much-quoted by opponents of the string-theoretic direction for particle physics. Question: The diagrams have been made from lines into what 3 dimensional shape?
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[A]: no

[Q]: Sentence: He rarely spoke, so little of his interior life is known. Question: Who remembered Dominic as a cheerful fellow?
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[A]:
no