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]: how many types of finch species are there
[EX A]: about fifteen

[EX Q]: who plays sarah on dc legends of tomorrow
[EX A]: Caity Lotz

[EX Q]: when did amazon start collecting sales tax in vermont
[EX A]:
February 1, 2017