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

When did texas win their independence from mexico?
March 1, 1836

When did pioneer 10 leave the solar system?

June 13, 1983