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.

Context: .@redskinz77 My brand new legs flew to the ISS this past spring, hoping to get them attached real soon! Robonaut (@AstroRobonaut) August 5, 2014 Question: where did they fly to the iss? Answer: past spring
yes