[Q]: Sentence: Paul Muller discovered that DDT was a very effective insecticide. Question: Who can be credited with finding out DDT is useful as an insecticide?
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[A]: yes

[Q]: Sentence: Saudi Arabia was the largest aid donor to China, providing close to 40,000,000 in financial assistance, and an additional 8,000,000 worth of relief materials. Question: How many international organizations made donations?
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[A]: no

[Q]: Sentence: The city is located 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.-Mexico border. Question: How far is Tucson from Mexico?
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[A]:
yes