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: The @Royals may have lost, but this team and that city is all winner. Thanks for a GREAT post season. Congrats Giants and GO @KCChiefs!!!!— Eric Stonestreet (@ericstonestreet) October 30, 2014 Question: what team are they rooting for now? Answer: kcchiefs
Example Output: yes

Example Input: Context: my heart is broken. i love you profoundly my dear friend. and i will miss you everyday. may flights... Zachary Quinto (@ZacharyQuinto) February 27, 2015 Question: who caused all of this? Answer: blatter wasn't sole responsible, more have to follow.
Example Output: no

Example Input: Context: Kellyanne Conway's inauguration outfit has made my eyes roll back so hard I am now in the past Stephen Leng (@steveleng) January 20, 2017 Question: who's inauguration outfit is referenced? Answer: kellyanne conway
Example Output:
yes