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: The news is disheartening. Everything that is going on is a result of a lack of understanding and misinformation by the media. #sadness
This tweet contains emotions: 
disgust, pessimism, sadness