Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @MaureenKamash that's a good question. I really don't know. I am slowly losing my optimism
This tweet contains emotions: 
optimism, pessimism, sadness