In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify given passage into two categories: (1) "yes" if the given context is useful in answering the question, and (2) "no" if the given context is not useful.

Input: Consider Input: Context: It's been one year since these four boys decided to be strong and stay for us # One Direction (@1DsUniverse) March 25, 2016 Question: how long has it been without zayn? Answer: one year

Output: yes

Input: Consider Input: Context: And listen even if @DanielHandler is her friend, he's just made sure that the story is his racist joke, not her achievements. Mikki Kendall (@Karnythia) November 20, 2014 Question: how good of a friend? Answer: he is a very good friend

Output: yes

Input: Consider Input: Context: A4: Investors want to see a prototype, build something before you ask for money. #CNNAfrica Erik Hersman (@whiteafrican) January 14, 2015 Question: what do investors want to see Answer: prototype
Output: yes