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 has the most atp masters 1000 titles?
answer:
Rafael Nadal


question:
Who has the best winning percentage in college football history?
answer:
Michigan


question:
Who played the wife in mcmillan & wife?
answer:

Susan Saint James