Definition: 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: Context: First stage has landed on Just Read the Instructions SpaceX (@SpaceX) January 14, 2017 Question: what stage has just landed? Answer: first

yes