Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
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