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\*.

when did gen 2 come out pokemon go
February 2017

when does lexi die in grey's anatomy
the eighth-season finale

who ran on the democratic ticket in 2016

Bernie Sanders