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.

When did the civil war end in sierra leone?
18 January 2002

Who plays sarah in cheaper by the dozen?
Alyson Stoner

First australian female tennis player to win the grand slam?

Margaret Smith Court