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: On the wheel as we grow older and become aware of ourselves as individuals with a dull responsibility in life?
This tweet contains emotions: 
disgust, optimism, pessimism, sadness