Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: My son 11 has 128 friends on Facebook and yet is moping around the house complaining he has no one to talk to. I'm right here son
This tweet contains emotions: 
sadness