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:
what is the base of an isosceles triangle

Ex Output:
the third side


Ex Input:
what was the famous window called in the notre dame cathedral in paris france

Ex Output:
rose window


Ex Input:
when did 18 years olds get the vote

Ex Output:

1971