Task: Classify the tweet into one of four ordinal classes of intensity of emotion E that best represents the mental 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: It is so exhilarating taking on the challenge of demonstrating + explaining WHY #JamesJoyce's #Ulysses is so endearing &amp; wonderful!
Emotion: joy
Intensity class: 
2: moderate amount of joy can be inferred