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: I'm introducing legislation with House Democrats today to overturn Trump's Muslim ban because it's un-American to discriminate based on race, religion or nationality. http://huff.to/2k9gbuN  Responser: Congresswoman Zoe Lofgren Thank you for your fearless leadership to fight for these injustices.
