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.
Q: Poster: Enjoyed speaking with constituents at my Congress on Your Corner in Salisbury.  Responser: Thank you for taking the time to speak with us.
A: 
Positive