Definition: 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.
Input: Context: Perhaps my final message from E. Aleppo. Regime forces are closing in and bunker busters are raining down. Bilal Abdul Kareem (@BilalKareem) December 12, 2016 Question: who are closing in on him? Answer: regime forces

yes