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 @Orioles are in contention and hosting @RedSox nation and Camden is empty #sad
This tweet contains emotions: 
pessimism, sadness