Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture 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