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: 2day's most used term is, #terrorism, with many addresses and forms. On my #opinion, the only form of terrorism in this world is, injustice!
This tweet contains emotions: 
fear, pessimism, sadness