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 looking forward to visiting the White House to talk about small business issues.  Responser: It is great to know someone is in Washington who has not changed their core values for political purposes! Go Mike!
