Task: Assign the sentence to a corresponding ordinal class that best reflects the inferred mental state of the writer, based on the intensity of positive or negative sentiment expressed. 2: very positive, 1: positive, 0: neutral, -1: negative, -2: very negative.
Sentence: a tough go , but leigh 's depth and rigor , and his skill at inspiring accomplished portrayals that are all the more impressive for their lack of showiness , offsets to a notable degree the film 's often-mined and despairing milieu .
Intensity class: 