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: On this Memorial Day we remember and honor all those who have served, we are grateful for your sacrifice.  Responser: and it is beacuse of their sacrifices and those of their families that i/we can enjoy our way of life. i for one will always be greatful!!!! thank you to all those who have served and to their families especially to those who have given the ultimate sacrifice!!!
