Determine the valence intensity of the writer's mental state conveyed in the snippet "Thus, We Care About New York Inc., a private group devoted to public cleanliness, has enlisted the help of the Girl Scouts, the city's Police and Sanitation Departments and Alpo Pet Foods Inc. to provide some positive reinforcement.". Provide a score from 0 to 1, where 1 signifies very positive and 0 signifies very negative.