What is the question to: "Robert William Gary Moore (4 April 1952 6 February 2011), was a Northern Irish musician, most widely recognised as a singer and guitarist."? The topic is Gary Moore.
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Answer: "when did gary moore die?"

What is the question to: "An otoacoustic emission (OAE) is a sound which is generated from within the inner ear ."? The topic is Otoacoustic emission.
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Answer: "what is evoked otoacoustic emissions?"

What is the question to: "The HST was built by the United States space agency NASA , with contributions from the European Space Agency , and is operated by the Space Telescope Science Institute ."? The topic is Hubble Space Telescope.
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Answer:
"who made hubble telescope?"