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\*.

who won the 2016 men's individual crossfit games
Mathew Fraser

who does lauren cohan play in the walking dead
Maggie Greene

who played robin in the tv series batman

Burt Ward