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: I hope everyone has a great time celebrating America's independence with family BBQs, parades, and picnics in the park. I look forward to doing just that in Guernsey!  Responser: I have enjoyed a quiet day on the farm doing mundane things.
