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: #Aleppo city is burning. The head of #terrorism #Assad regime &amp; #Russia are bombarding the city right now with #whitephosphrus #bombs !
This tweet contains emotions: 
anger, disgust, fear, sadness