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: Finally finished this term's class book, Sky Hawk by @gill_lewis kids in tears and actually cheering at the end #good read
This tweet contains emotions: 
joy, optimism, trust