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: With record-breaking temperatures across Illinois this week, find a cooling center near you by calling 800-843-6154 or by visiting http://keepcool.illinois.gov.  Responser: Ditto, Ed! So proud of you, Cheri!!!
