Given the emotion anger and the tweet "A wise man told me that holdin' a grudge is like\nLetting somebody just live inside of your head rent free", classify the intensity of the emotion displayed in the tweet. The classification options are: 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.
0: no anger can be inferred