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: Ken Rosenthal @Ken_RosenthalSources: #Braves close to acquiring 2B Brandon Phillips from #Reds.2/12/2017, 4:24:30 AM Question: does ken rosenthal mention where he received his information? Answer: it is just listed as "sources".

yes