Definition: Convert a disfluent question to a proper question. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.
Input: As of February 1912 no sorry 2011, how many numbers has Goldbach's conjecture been proven to?

As of February 2011, how many numbers has Goldbach's conjecture been proven to?