question: OPTIONS:
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Ehrlich's approach of systematically varying the chemical structure of synthetic compounds and measuring the effects of these changes on biological activity was pursued broadly by industrial scientists, including Bayer scientists Josef Klarer, Fritz Mietzsch, and Gerhard Domagk.
Who is responsible for creating Prontosil?

answer: yes

[Q]: Sentence: YouTube Red was originally announced on November 12, 2014, as "Music Key", a subscription music streaming service, and was intended to integrate with and replace the existing Google Play Music "All Access" service. Question: What is youtube red? OPTIONS:
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[A]: no

Q: Does "" Development of the milk-based industries, such as Ilchester Cheese Company and Yeo Valley Organic, have resulted in the production of ranges of desserts, yoghurts and cheeses, including Cheddar cheesesome of which has the West Country Farmhouse Cheddar Protected Designation of Origin (PDO)." provide a valid answer to "What area is PDO"?
OPTIONS:
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A: yes

Problem: Does "The metropolitan area surpassed the 10 million mark in the early 1930s, becoming the first megacity in human history." answer the question "Who was mayor of New York during the Great Depression?" OPTIONS:
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A: no

Does the sentence "Farley Jackmaster Funk was quoted as saying "In 1982, I was DJing at a club called The Playground and there was this kid named Leonard 'Remix' Roy who was a DJ at a rival club called The Rink." provide a valid answer to the question "who was the resident DJ at The Warehouse in Chicago?" OPTIONS:
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A: no

Does the sentence "On 20 May 2009, May and Taylor performed "We Are the Champions" live on the season finale of American Idol with winner Kris Allen and runner-up Adam Lambert providing a vocal duet." provide a valid answer to the question "On 20 May 2009 which Queen members performed We are the Champions on American Idol?" OPTIONS:
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A:
yes