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: @GoPro your UX online is appalling! No clear save button, not being able to use any generic TLD's #unhappy
This tweet contains emotions: 
anger, disgust, sadness