{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Molecular Symmetry", "refinement": "This problem involves understanding the molecular symmetry of organic compounds resulting from a series of chemical reactions.", "specific_scope": "The focus is on determining the symmetry group of the final product (product 3) after a sequence of reactions involving toluene and various reagents.", "goal": "Identify the correct molecular symmetry group of product 3 from the given options."}, "summary": "This problem requires knowledge of molecular symmetry in organic chemistry, specifically the symmetry group of a compound after a series of reactions. The task is to analyze the final product (product 3) and determine its symmetry group from the provided options. Understanding the structure and symmetry elements of the molecule will lead to the correct identification of its symmetry group."}