[Q]: Sentence: The Gothic vault, unlike the semi-circular vault of Roman and Romanesque buildings, can be used to roof rectangular and irregularly shaped plans such as trapezoids. Question: Which type of vault can be used for rectangular and trapezoidal shaped roofs?
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[A]: yes

[Q]: Sentence: A massive storm on 15 March 1889 damaged or destroyed the warships, ending the military conflict. Question: What natural disaster put an end to the war in Apia harbour?
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[A]: yes

[Q]: Sentence: The following week, John Edwards won the South Carolina primary and finished a strong second in Oklahoma to Clark. Question: Which candidate went on to win the South Carolina primary?
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[A]:
yes