Given the emotion sadness and the tweet "ordered my vacation bathing suits. one less thing to fret about.", 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.
0: no sadness can be inferred