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: I know it's the final day of summer when it's the finale of @CBSBigBrother #sadness
This tweet contains emotions: 
pessimism, sadness