Task: Assign a suitable level of intensity of emotion E to the tweet, representing the emotional 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: Tiangong 1, China's first space laboratory, will come to a fiery end in late 2017. The average decommissioned satellite either burns ...
Emotion: anger
Intensity class: 
0: no anger can be inferred