You will be given a definition of a task first, then some input of the task.
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.

Poster: John lost to Tomas Berdych 6-1, 1-6, 6(4)-7  Responser: Hey John, Do u remember me? You gave me your racket at tallahassee, Fl in the challenger when u beat prakash Armatraj!
Output:
Positive