Task: Determine the dominant emotion in the tweet and classify it as either 'neutral or no emotion' or one of the eleven provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @RobertWesley3 I'm #mad that my brother is #sad ! Feel better bub!
This tweet contains emotions: 
anger, pessimism, sadness