Determine how strongly sadness is expressed in the following tweet. Use the scale: 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: Maybe I can sleep with my chem book on my head and it will all sink in my brain
1: low amount of sadness can be inferred