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: WBAL's coverage of the traffic improvements in store for the Ft. Meade area -- great news!  Responser: What About Martins ANG 175 -- Have you forgotten this fort? They need a storage Building.
