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.

Example 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
Example Output: no

Example Input: Context: @davidlorr @CEO It's not fun & viral if a corporation claims to have orchestrated it. There's 0% chance Target would allow Breakr to speak— Dan Fleyshman (@DanFleyshman) November 5, 2014 Question: who is the 1st woman astronaut? Answer: eileen collins
Example Output: no

Example Input: Context: Gov declares state of emergency as Commonwealth responds to flooding & prepares for more dangerous weather. Terry McAuliffe (@GovernorVA) September 30, 2015 Question: what caused the state of emergency delcaration? Answer: flood and expected bad weather
Example Output:
yes