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: @DxfyingGrxvity - frustration, looking up at Elphaba in a frown of aggravation. Her high pitched voice was growing more and more --
This tweet contains emotions: 
anger, disgust