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: Is in Haiti right now with a bipartisian Congressional delegation  Responser: I am so proud of my Congresswoman Jackson Lee as always keep up the great work much love to you from San Antonio, TX
