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:
How many episodes are there in a place to call home?
answer:
67


question:
What's the name for earth's supply of water?
answer:
hydrosphere


question:
Who played piano on i can't make you love me?
answer:

Bruce Hornsby