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\*.

Ex Input:
when did the us send troops to europe in ww1

Ex Output:
1917


Ex Input:
who played barney fife on the andy griffith show

Ex Output:
Jesse Donald Knotts


Ex Input:
which type of plate boundary is in the southern california region

Ex Output:

continental transform fault