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: Shame the cashback @mbna @AmexUK credit card comes to an end. I used to look forward to that end of year bonus. Sad really. #cashback
This tweet contains emotions: 
disgust, sadness