Task: Assign a suitable level of intensity of emotion E to the tweet, representing the emotional state of the tweeter. 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: To insure good health: Eat lightly, breathe deeply, live moderately, cultivate cheerfulness, and maintain an interest in life.
Emotion: joy
Intensity class: 
1: low amount of joy can be inferred