[Q]: Sentence: One hundred years after the fall of Constantinople in 1453, Pierre Belon described in his work Observations in 1553 that pissasphalto, a mixture of pitch and bitumen, was used in Dubrovnik for tarring of ships from where it was exported to a market place in Venice where it could be bought by anyone. Question: After what event in France did asphalt begin to be used for pavements and assorted other uses?
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[A]: no

[Q]: Sentence: The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Question: How long has it taken for the Alps to form?
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[A]: yes

[Q]: Sentence: Because the electron mobility is higher than the hole mobility for all semiconductor materials, a given bipolar npn transistor tends to be swifter than an equivalent pnp transistor. Question: What is quicker, a bipolar n-p-n transistor or a p-n-p transistor?
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[A]:
yes