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: This Red Sox team is the equivalent of Tiger Woods in his heyday: no mercy.
This tweet contains emotions: 
anger, disgust, sadness