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 played in the men's semi final in wimbledon in 2015

Ex Output:
Novak Djokovic


Ex Input:
when did 'open era' began in tennis

Ex Output:
1968


Ex Input:
where is the olympics going to be in 2020

Ex Output:

Tokyo