Task: Determine the prevailing emotional tone of the tweet, categorizing 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 most accurately represent the tweeter's mental state.
Tweet: Favourite quote of the year so far is by @ameliameech 'I swore at a parsnip' 😂
This tweet contains emotions: 
joy, optimism