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: Melania Trump says she wishes her husband would use nicer language — sometimes #TrumpFamily CNN Politics (@CNNPolitics) April 13, 2016 Question: melania trump wishes who would use nicer language? Answer: her husband.
Example Output: yes

Example Input: Context: Captain Patrick Sondenheimer, the man who tried to save #flight9525, a true hero, is the name I'll remember. #GermanWings #RIP— Verena King (@verenaking) March 28, 2015 Question: what is the name of the man who tried to save the german wings flight? Answer: patrick sondenheimer
Example Output: yes

Example Input: Context: #Khartoon - Choices #OmranDaqneesh 5 pulled from under the ruins, #AylanKurdi 3 drowned in the Mediterranean #Syria ALBAIH (@khalidalbaih) August 18, 2016 Question: how many drowned in the mediterranean? Answer: three
Example Output:
yes