Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Since the 'update' my @iPhone loses power nearly 40% faster.  #furious
This tweet contains emotions: 
anger, disgust, sadness