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: At House Foreign Affairs Committee listening to Secretary Clinton testify on Benghazi attacks. Thank you Madame Secretary for your service.  Responser: We Taiwanese People and Taiwanese Americans Like You and Support You!
