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.

Context: Our vision @oneworldhealth is to empower communities to achieve long-term improvements in health and quality of life OneWorld Health (@OneWorldHealth) March 24, 2016 Question: what is one world health vision? Answer: to empower communities
yes