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: @michaelsloan87 @SkyFootball The disappointment when it's actually a new club sponsor! 😂
This tweet contains emotions: 
joy, pessimism, sadness