Classify the emotions found in the tweet "@katlute which one....the one where u threaten violence? Or the phedophiliac u support?  Or the constitution violations he proposes?". Select from the following: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If the tweet is emotionless, reply "neutral or no emotion".
anger, anticipation, disgust, fear