[Q]: Sentence: During the Age of Discovery in the 15th and 16th centuries, Portugal and Spain pioneered European exploration of the globe, and in the process established large overseas empires. Question: In which centuries was the Age of Discovery?
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[A]: yes

[Q]: Sentence: Similarly, the Pioneer Laseractive and Halcyon were introduced as home video game consoles that used LaserDisc media for their software. Question: In what year was Sega's AStron Belt released?
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[A]: no

[Q]: Sentence: Namibia is the home for one of the toughest footraces in the world, the Namibian ultra marathon. Question: What sport does the most famous Namibian athlete participate in?
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[A]:
no