Task: Determine the appropriate ordinal class for the sentence, reflecting the mental state of the writer through various degrees of positive and negative sentiment intensity. 2: very positive, 1: positive, 0: neutral, -1: negative, -2: very negative.
Sentence: it 's an example of sophisticated , challenging filmmaking that stands , despite its noticeable lack of emotional heft , in welcome contrast to the indulgent dead-end experimentation of the director 's previous full frontal .
Intensity class: 