TASK DEFINITION: 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.
PROBLEM: When did the civil war end in sierra leone?

SOLUTION: 18 January 2002

PROBLEM: How many episodes in this game of thrones season 7?

SOLUTION: seven episodes

PROBLEM: Who wrote every day is a winding road?

SOLUTION:
Sheryl Crow, Jeff Trott, Brian MacLeod