Given the emotion sadness and the tweet "@thatradiogeek That is a tremendous thing to wake up to and read, man. Glad to hear it, as we need WAY more people helping with this.", classify the intensity of the emotion displayed in the tweet. The classification options 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.