Analyze the tweet "This is the first time I've been sober on my birthday in 6 years. #recovery #sobriety #sober #soberissexy #sobernative" to classify the intensity of the emotion sadness. Your 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