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: Just received the fantastic news that our next 9 bed 'Sui Generis' HMO has full planning permission. Build to start 01 September. #excited
This tweet contains emotions: 
joy, optimism