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 Q]: where does the surname janse van rensburg come from
[EX A]: South African

[EX Q]: who won the wwe championship elimination chamber 2015
[EX A]: Dean Ambrose

[EX Q]: when did the iphone 7 plus come put
[EX A]:
September 16, 2016