instruction:
In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.
question:
Who does the voice for santa in polar express?
answer:
Thomas Jeffrey Hanks


question:
How many episodes star trek discovery season one?
answer:
15


question:
The amount of salt in water is called?
answer:

Salinity