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:
who gave the concept of game theory first

Ex Output:
Charles Waldegrave


Ex Input:
who played uncle arthur in the comedy company

Ex Output:
Glenn Robbins


Ex Input:
the time of day just after the sunsets

Ex Output:

civil twilight