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: Headed to MDW w/ layover in SLC. Got off for food. Wrong move. Bailed on my food &amp; barely made it. @SouthwestAir #WannaGetAway #Contest
Emotion: sadness
Intensity class: 
1: low amount of sadness can be inferred