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: #CNNAfrica The chat was well worth staying up past bedtime. Will be thinking of solving problems borrowing China's experience! #SinoAfrica— Wendy Lee (@wleerpcv) January 14, 2015 Question: who's experience would wendy borrow? Answer: china's

yes