Assess the level of the emotion sadness in the tweet provided. Use the following categories: 0: no sadness can be inferred, 1: low amount of sadness can be inferred, 2: moderate amount of sadness can be inferred, 3: high amount of sadness can be inferred.
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
1: low amount of sadness can be inferred