Task: Categorize the tweet based on the intensity of the specified emotion E, capturing the tweeter's mental state. 0: no E can be inferred. 1: low amount of E can be inferred. 2: moderate amount of E can be inferred. 3: high amount of E can be inferred.
Tweet: I'm buying art supplies and I'm debating how serious is it to buy acrylic paint.
Emotion: sadness
Intensity class: 
0: no sadness can be inferred