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: Whenever I turn on the radio and hear Bob Dylan's Knocking on Heaven's Door being played, I assume he's died. #relieved #notyet #someday
This tweet contains emotions: 
disgust