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: Don't forget! Tomorrow we are hosting our "Vets for Joni" event at the Machine Shed in Urbandale. If you plan on coming out, please RSVP to info@joniforiowa.com - we hope to see you tomorrow morning!  Responser: Trolls, at least Joni is a vet and won't miss 78% of meeting for veterans. Or follow Obama like sheep. Wow how I hate no,despise liberals. You had you turn and Obama has ruin this country.
