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: @torbalan I still have some shred of optimism. It's rapidly disappearing however...
This tweet contains emotions: 
optimism, pessimism, sadness