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: Well folks please welcome into this world #6and#7 grand kids Vineah and Vincent III aka Grand pimpens twins...lol..#8 and#9 will be here later next year...Wow!!!!! 9 grand kids  Responser: Congratulations!!!!
