[Q]: Sentence: All major cities have their distinctive local department stores, which anchored the downtown shopping district until the arrival of the malls in the 1960s. Question: By what year had most local stores been assimilated into larger chain operations?
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[A]: no

[Q]: Sentence: Greece is today relatively homogeneous in linguistic terms, with a large majority of the native population using Greek as their first or only language. Question: From which language did the Tsakonian language derive?
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[A]: no

[Q]: Sentence: By road it is 450 kilometres (280 mi) south-east of London, 287 kilometres (178 mi) south of Calais, 305 kilometres (190 mi) south-west of Brussels, 774 kilometres (481 mi) north of Marseille, 385 kilometres (239 mi) north-east of Nantes, and 135 kilometres (84 mi) south-east of Rouen. Question: How many kilometers is it away from London?
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[A]:
yes