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: >@cnn @cnnhealth because we are an obese nation, full of addicts to drugs and alcohol who only crave more. #didn'tneedtoreadit— NGSiegel (@NGSiegel) January 10, 2013 Question: what is the nation full of? Answer: addicts to drugs and alcohol
Example Output: yes

Example Input: Context: And while we applaud all of the black nominees for Academy Awards this yr we know there is a long way to go for all underrepresented groups.— Matthew A. Cherry (@MatthewACherry) January 24, 2017 Question: where is this taking place? Answer: near the shaw tower at st. louis university.
Example Output: no

Example Input: Context: Just more proof this is about submission. We were told for months Trump didn't need Cruz, but when he doesn't endorse they go apoplectic.— Brian Phillips (@RealBPhil) July 21, 2016 Question: who did trump not need? Answer: cruz
Example Output:
yes