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: Lost: Geelong football team. \nLast seen entering through the banner not sure where they've been since... #unhappy #playwithsomeheart
This tweet contains emotions: 
anger, disgust, pessimism, sadness