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: Lost and forgotten footage from 2014 - Josh Birch Films has made it into a sick edit that I'm really happy with!! Enjoy, this is getting me so stoked to get shredding back CardronaParksNZ / Cardrona Alpine Resort, NZ soon!! :D  Responser: Harry Fox George Bourke Cardies looking phresh
