Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Poster: Stopped by Fashion Week and got to hang with Amber Fillerup (Barefoot Blonde) at Lauren Conrad's runway show. Kohl's #LCRunway   Responser: You are Both Sweet Ashley Tisdale and Lauren Conrad
Solution: Positive
Reason: The responser is praising the poster.

Now, solve this instance: Poster: John lost in the second round of the Valencia Open 500 to Jeremy Chardy 6-7(7), 3-6. He and partner, Feliciano Lopez will face Alexander Peya and Bruno Soares tomorrow in the quarterfinals of doubles.  Responser: Who's surprised? He doesn't seem to have any killer instinct.
Student:
Negative