Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @mdthib This is so lovely! Or I am frightened, not sure which! But, wow!
This tweet contains emotions: 
fear, joy, optimism