Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @SEPTA 45 minutes late &amp; counting! #horrible CTT Service sucks!
This tweet contains emotions: 
anger, disgust, fear, sadness