Determine the valence intensity of the writer's mental state conveyed in the snippet "Some chaos remains inevitable, but Mr. Quinones, who announced his retirement only days after ordering the Bronx school shut, would sacrifice no principle by agreeing to a compromise that gives J.H.S. 123 a fair second chance.". Provide a score from 0 to 1, where 1 signifies very positive and 0 signifies very negative.