Task: Determine the dominant emotion in the tweet and classify it as either 'neutral or no emotion' or one of the eleven provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Hey @gmail why can I only see 15 sent emails? Where's the thousands gone?
This tweet contains emotions: 
anger, disgust, fear, pessimism