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: You want  bad service use #frontier they have #terrible service. Go to #AT&amp;T anybody is better. I am going to complain to better business
This tweet contains emotions: 
anger, disgust