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: Happy #nationalpuppyday but then again every day is happy with this little pup of mine! #dog #boerboel #mastiff #pet #bestfriend  Responser: Awwww so sweet love the picture. Happy birthday Beth...
