In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.
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Question: who opened the first school for the blind in the us

Answer: John Dix Fisher


Question: who wrote the story the wizard of oz

Answer: L. Frank Baum


Question: when does the 2017 regular season nfl start

Answer:
September 7, 2017