Definition: 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: Switching roles this morning with Veronica Johnson ABC7 at the Citi Open!!  Responser: I see the future, Shelby Rogers!!!! Tennis Channel? ESPN? hmmm.

Positive