instruction:
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.
question:
Context: The WALL, which is already under construction in the form of new renovation of old and existing fences and walls, will continue to be built. Donald J. Trump (@realDonaldTrump) September 14, 2017 Question: during construction of the wall, what is being newly renovated? Answer: old/existing fences and walls
answer:
yes

question:
Context: Ghana journos are safe. Police barricade separates us from the fans. We're ok. For now. #afcon2015 Gary Al-Smith (@garyalsmith) February 5, 2015 Question: who's thoughts do they want? Answer: speaker cruz
answer:
no

question:
Context: People fleeing intensified fighting in #Mosul head for IDP camps along the main highway from #Nneveh to #Kurdistan. #Iraq #ISIS Moni Basu (@MbasuCNN) November 3, 2016 Question: what are they fleeing from? Answer: intensified fighting in mosul.
answer:
yes