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: As a photographer this portrait shooting mode on the iPhone 7 Plus is going to frustrate me ~75% of the time but delight ~25% of the time.
This tweet contains emotions: 
anger, disgust, sadness