For the tweet "@KeithRothfus Your silence=complicity. Obviously you have no problem with Russian interference. #sad #russianhacking #treason", 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.