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: 5 person of renown cheerful expectation solutions-pleasure principle back: HsNHZMJSc
This tweet contains emotions: 
joy, optimism