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: Flight 815 crashed on The Lost Island 2004 #lost @JoshuaJThurston
0: no sadness can be inferred