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've learned to let go of resentment for people who have hurt me, because keeping it is like swallowing poison and expecting them to die.
Emotion: anger
Intensity class: 
1: low amount of anger can be inferred