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: We are headed to space with #LightSail. Thank you to all the citizens who made this happen. #Onward! Planetary Society (@exploreplanets) May 20, 2015 Question: who did planetary society thank in their tweet? Answer: citizens who made it possible

yes