instruction:
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\*.
question:
what were the cause of the american civil war
answer:
conflicts over slavery


question:
who played in the men's semi final in wimbledon in 2015
answer:
Novak Djokovic


question:
where is oxytocin made and what is its function
answer:

social bonding