Given the emotion sadness and the tweet "@who_cares_nvm The destroying of my memory is my goal so ECT might work. Or a zapper thingy like in Men in Black. Or Dumbledore's pensive.", rate the intensity of sadness shown. The rating scale is: 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.