[Q]: Sentence: Armadillo Day, or, more popularly, Dillo Day, a day of music and food, is held on Northwestern's Lakefill every Spring on the weekend after Memorial Day. Question: When is Armadillo Day held every year?
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[A]: yes

[Q]: Sentence: There has been some concern over the potential adverse environmental and ecosystem effects caused by the influx of visitors. Question: What have the authorities produced in response to these requests?
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[A]: no

[Q]: Sentence: A national railway system that extends throughout the country and into Spain, is supported and administered by Comboios de Portugal. Question: How long is the total railway system in Portugal?
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[A]:
no