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: From #Afghanistan: Happy #VeteransDay 2 all those who have + are currently serving.We are a stronger nation bc of u! https://t.co/udTgGUXpML  Responser: YES,,,,THEY ARE US HEROES!!! LOVE TO EVERYONE!!!! HERE,,, THERE,,, AND ANY PLACE THEY ARE,,, I'M SENDING MY LOVE!!!
