Evaluate the tweet for the intensity of the emotion anger. The categories are as follows: 0: no anger can be inferred, 1: low amount of anger can be inferred, 2: moderate amount of anger can be inferred, 3: high amount of anger can be inferred.
Tweet: Professor: introduce yourselves and say one interesting fact\n\nHi I'm Ethan and the Sun will engulf our planet in a fiery explosion one day
1: low amount of anger can be inferred