Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
Tweet: @jennylhowe I am angry at the student for being a racist, and the teacher for not stopping it, and at the class for letting it go by.
This tweet contains emotions: 
anger, disgust