Task: Categorize the tweet into an intensity level of the specified emotion E, representing 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: Last night I had a dream that today was Christmas. I woke up screaming because I wasn't ready. #nightmare
Emotion: fear
Intensity class: 
3: high amount of fear can be inferred