Task: Assign one of four ordinal intensity classes of emotion E to a given tweet based on the emotional state of the user. 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: @Delta.  Are you kidding?  Delayed from 7:30pm to 11:00 - only to cancel it because the pilot is overtime.
Emotion: sadness
Intensity class: 
2: moderate amount of sadness can be inferred