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:
who developed a useful staining method to identify bacteria
answer:
Hans Christian Gram


question:
when does the new season of family guy start
answer:
October 1, 2017


question:
where do purple martins go in the winter time
answer:

South America