For the tweet "Hey @NHSEngland imagine being blue lighted to hospital unable to breathe only to be dumped in a cubicle and not seen for 4 hours #horrendous", classify the intensity of the emotion sadness. The possible classifications 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.