Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: Why are people that don't have iPhones so bitter about iPhones???? Can someone explain
This tweet contains emotions: 
anger, anticipation, disgust, fear, pessimism, sadness