Instructions: Given a 'poster' sentence and a corresponding 'response' (often, from Facebook or Reddit)classify the sentiment of the given response into four categories: 1) Positive, 2) Negative, 3) Neutral, and 4) Mixed if it contains both positive and negative.
Input: Poster: http://espn.go.com/espnw/8098946/varvara-lepchenko  Responser: Wow. That is so awesome.
Output:
Positive