Task: Evaluate the tweet for emotional cues and classify 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 indicate the tweeter's state of mind.
Tweet: From what I know of the man, I have to assume that @realDonaldTrump has had a heated argument with his own penis. #sad
This tweet contains emotions: 
sadness