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: Everyone at #Crufts2015 horrified at death of Irish Setter Jagger & post-mortem found poison. Awful for all concerned Clare Balding (@clarebalding) March 8, 2015 Question: what type of explosions? Answer: huge
no

Context: Prince didn't even perform tonight and he owned the Grammys. Mashable (@mashable) February 9, 2015 Question: how many refugees were stuck? Answer: 100s
no

Context: So much hard work.. getting tired... my battery voltage is approaching the limit soon now Philae Lander (@Philae2014) November 14, 2014 Question: what does rihanna have? Answer: a new man

no