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:
Where do purple martins go for the winter?
answer:
Amazon River Basin


question:
Who sang the original version of earth angel?
answer:
The Penguins


question:
Who sings the chorus in mo money mo problems?
answer:

Kelly Price