Given the emotion sadness and the tweet "Not written for African-American\n\nNo refuge could save the hireling and slave\nFrom the terror of flight or the gloom of the grave,", 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.
2: moderate amount of sadness can be inferred