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: Some 'friends' get bitter when it seems your life is moving better than theirs.
This tweet contains emotions: 
disgust, pessimism, sadness