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: Green Line: Service may be impacted Tuesday AM. Trains every 8-10 min with POSSIBLE shuttle bus replacement btwn Navy Yard & Gallery Place.— Metrorail Info (@Metrorailinfo) January 13, 2015 Question: where was a projectile launched from? Answer: syria

no