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: Update on The Hungry Mouth: a massive snowstorm delayed the printers by 2 days. They're now projecting Friday morning as finish-day. I'll be shipping the books the moment I get my paws on them. Continual apologies for my lack of punctuality...  Responser: I'm sure it'll be worth the wait. :)
