[Q]: What is the question to: "Currently the dominant technology for direct production is steam reforming from hydrocarbons ."? The topic is Hydrogen production.
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[A]: "how is hydrogen produced?"

[Q]: What is the question to: "Paranasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity ( maxillary sinuses ), above the eyes ( frontal sinuses ), between the eyes ( ethmoid sinuses ), and behind the ethmoids ( sphenoid sinuses )."? The topic is Paranasal sinuses.
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[A]: "where are facial sinuses?"

[Q]: What is the question to: "Steven Tyler (born Steven Victor Tallarico; March 26, 1948) is an American singer, songwriter, and multi-instrumentalist, best known as the frontman and lead singer of the Boston -based rock band Aerosmith , in which he also plays the harmonica, and occasional piano and percussion."? The topic is Steven Tyler.
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[A]: "when was steven tyler born?"

[Q]: What is the question to: "Area code 810 is the telephone area code serving eastern Michigan ."? The topic is Area code 810.
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[A]:
"what area code is 810?"