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.
Q: Context: Terrible loss for golf and me personally. My grandfather is gone and we all lost a brave, decent and honorable man. I'll miss u Charlie. Tiger Woods (@TigerWoods) February 4, 2015 Question: who did @tigerwoods loose? Answer: his grandfather
A:
yes