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: Saddened today at the loss of Betty Willis, whose iconic neon designs continue to define Las #Vegas' visual fabric. Vegas (@Vegas) April 20, 2015 Question: what did kallis end there? Answer: his illustrious career

no