Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: What a sad day...1st day of Fall...I don't dislike Fall...I just LOVE Summer #FirstDayofFall #goodbyesummer #sadness #bathingsuitsforever
This tweet contains emotions: 
pessimism, sadness