[Q]: Sentence: In the late 19th century, the most influential theorists were William James (18421910) and Carl Lange (18341900). Question: Along with William James, who was an influential 19th century theorist?
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[A]: yes

[Q]: Sentence: Since 1900, classical periods have been reckoned more by calendar century than by particular stylistic movements that have become fragmented and difficult to define. Question: How have periods been reckoned Since 1900?
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[A]: yes

[Q]: Sentence: The total number of tuberculosis cases has been decreasing since 2005, while new cases have decreased since 2002. Question: When did new cases of TB infection start going down?
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[A]:
yes