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: I need to study up on celebrities' birthdays bc my heart almost stopped when I saw Harrison Ford trending... 😯 #relieved
Emotion: joy
Intensity class: 