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.

Q: Who sang the original version of let it rain?

A: Eric Clapton
****
Q: Who sang for debra kerr in an affair to remember?

A: Margaret Nixon McEathron
****
Q: The commonly used standard length of hacksaw blade is?

A:
10 to 12 inches
****