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: About to ride off road on a 2 Wheel Drive Ural with sidecar. Add that to my list of unexpected adventures @alpinestars @uralmotorcycles #fun #rideforlife  Responser: Your radiating joy. See you on the future cruise Alonzo.
