Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: Class is canceled due to a funeral. Not sure if it's appropriate to be happy or sad.. #happy
This tweet contains emotions: 
joy, sadness