[Q]: Sentence: Joshua H. Bean, the last alcalde of San Diego, was elected the first mayor. Question: What happened two years after San Diego elected it's first mayor?
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[A]: no

[Q]: Sentence: Bern is ranked among the world's top ten cities for the best quality of life (2010). Question: When did the centre of Bern become the UNESCO World Heritage Site?
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[A]: no

[Q]: Sentence: Taylor and May again appeared on the American Idol season 8 finale in May 2009, performing "We Are the Champions" with finalists Adam Lambert and Kris Allen. Question: Who were the season 8 finalists on American Idol?
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[A]:
yes