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: A3: But chronic sadness may mean there are underlying issues than getting sad occassionally over a particular issue (2/2) #mhchat
This tweet contains emotions: 
disgust, fear, pessimism, sadness