Evaluate the tweet for the intensity of the emotion sadness. The categories are as follows: 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: I don't know why everyone is pretending to be sad about angelina and brad, everyone knows his dumb ass should've stayed with jennifer.
0: no sadness can be inferred