[Q]: Sentence: In the eastern lands the dynasty had died out earlier, in 911, with the death of Louis the Child, and the selection of the unrelated Conrad I (r. 911918) as king. Question: In what modern country were Louis the German's lands?
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[A]: no

[Q]: Sentence: Houston's mayor serves as the city's chief administrator, executive officer, and official representative, and is responsible for the general management of the city and for seeing that all laws and ordinances are enforced. Question: What does Houston's mayor also serve as?
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[A]: yes

[Q]: Sentence: It was in the second half of the 20th century that the artistic movement began to drift apart from the Revolutionary theme. Question: Who was a famous engraver that migrated to Mexico City?
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[A]:
no