Using the tweet "@SocialistVoice @georgegalloway Tory teachers I know are disillusioned by another 1%. There seem to be more sullen faces in the staff room.", determine how much sadness is shown. The categories are: 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.