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 united last win the champions league?

SOLUTION: 21 May 2008

PROBLEM: The meadowlands was once which kind of municipal facility?

SOLUTION: A city landfill

PROBLEM: Where does the length of the day remain the same throughout the year?

SOLUTION:
at the Equator