Using the tweet "the man was staring at him intensely, not smiling but not frowning either. just looking at him. 'you should sleep some more' the man says", 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.