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: oh, btw - after a 6 month depression-free time I got a relapse now... superb
This tweet contains emotions: 
pessimism, sadness