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: Adrian Wojnarowski @WojVerticalNBASources on @TheVertical: IU's OG Anunoby - projected 1st round NBA pick - will undergo knee surgery, out for season. , 6:20:38 PM Question: what type of surgery did og have? Answer: knee

yes