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: My heartbeat is forever stumbling on memories of things past. #longing #loss #shape #form #sadness
This tweet contains emotions: 
disgust, sadness