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: @delta correction 26 ppl. Checked in. Standing at the gate. &amp; Flt 1449 took off without us. #furious
This tweet contains emotions: 
anger, disgust, sadness