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: Sometimes it takes #sadness to know happiness, #noise to appreciate #silence and absence to value presence.
This tweet contains emotions: 
anticipation, joy, optimism, sadness