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: Major power outage in Montreal but we kept playing on. Happy to get through my tricky match, look forward to facing Lisicki today!  Responser: Go Madison!! You can do it!!!
