Task: Assess the emotional content of the tweet and classify 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 best represent the tweeter's mental state.
Tweet: It's my last week at CN! I'm gonna be sad to leave, but this will also be my first planned break since going into animation!
This tweet contains emotions: 
sadness