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: When Dem Representative walked out House today they walked out on the family of murdered patrol agent Terry We just trying to tell truth  Responser: Thank you Senator Grassley for standing up for the truth in every and any situation, and representing the folks of Iowa with Honor and integrity.
