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: tesco. why OH why cant my Visa electron be accepted on line , I am 55 , NOT 15 ??
This tweet contains emotions: 
anger, disgust, pessimism, sadness