Using the tweet "Request MRI 2 years ago, Neuro only requested last year, I'm still waiting on appointment  #mssucks #healthcareFail", 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.