Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Today's realisation that it was the last time I watch swimming lesson cos I go back to work next week lead to a joyous bedtime. #worstoneyet
This tweet contains emotions: 
anticipation, disgust, joy, optimism, sadness