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: I click on download on my PC. Message says 'Thank you for downloading #iTunes \nSo, where's the download?! #frustrated
This tweet contains emotions: 
anger, disgust