[Q]: Sentence: Brick was the ordinary building material, and with it cities, forts, temples and houses were constructed. Question: What was the ordinary building material of Sumerians?
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[A]: yes

[Q]: Sentence: Carnival means weeks of events that bring colourfully decorated floats, contagiously throbbing music, luxuriously costumed groups of celebrants of all ages, King and Queen elections, electrifying jump-ups and torchlight parades, the Jouvert morning: the Children's Parades and finally the Grand Parade. Question: When is King Mom symbolically burnt?
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[A]: no

[Q]: Sentence: Periodic events and periodic motion have long served as standards for units of time. Question: Periodic events and periodic motion have served as standards for what?
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[A]:
yes