Evaluate the tweet for the intensity of the emotion sadness. The categories are as follows: 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.
Tweet: How much time should I give to my friend who lost his laptop to mourn before I can ask him to give me his laptop charger and extra battery??
0: no sadness can be inferred