Task: Determine the appropriate intensity class for the tweet, reflecting the level of emotion E experienced by 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: When a guy comes on the train that smells like a mixture of a damp dog, old sweat and sewage works!!!! #gross  #getoffthetrain #smelly
Emotion: fear
Intensity class: 
0: no fear can be inferred