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: @Gsmsbooksrus @goodreads 'so shines a good deed in a weary world' Roald Dahl, Charlie and the Chocolate Factory
0: no sadness can be inferred