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\*.

Example Input: what type of stone did the romans use
Example Output: Travertine limestone

Example Input: who sang i got my eyes on you
Example Output: R&B vocal group, Today

Example Input: who won the roller derby world cup 2018
Example Output:
USA Roller Derby