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.

Who wrote i look to you by whitney houston?
Robert Sylvester Kelly

Who is the owner of royal challenges bangalore?
United Spirits Limited

Who has sold the most records in the uk?

The Beatles