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: Mirka and I are so incredibly happy to share that Leo and Lenny were born this evening! #TwinsAgain #Miracle Roger Federer (@rogerfederer) May 6, 2014 Question: who is report the soldier is dead? Answer: official sources

Output: no

Input: Consider Input: Context: Really hoping we get Trump this Thursday #Presidentialselfiegirls (Rad)dison (@_adddy_) July 13, 2015 Question: what is the message for? Answer: congratulations on the new birth

Output: no

Input: Consider Input: Context: To anyone writing about #dawnwall, this is not an effort to "conquer." It's about realizing a dream. Kevin Jorgeson (@kjorgeson) January 13, 2015 Question: what's not an effort to conquer? Answer: dawnwall
Output: yes