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: This prison is awfully gloomy. Would you mind if I put some ribbons on the bars?
This tweet contains emotions: 
disgust, joy, optimism