{"knowledge_schema": {"broad_category": "Chemistry \u2192 Molecular Symmetry", "refinement": "This problem involves understanding the molecular symmetry of a specific compound (product E) based on its chemical structure and bonding.", "specific_scope": "The focus is on determining the symmetry group of product E, which is formed through a series of chemical reactions involving other compounds.", "goal": "Identify the correct molecular symmetry group of product E from the given options."}, "summary": "This problem requires knowledge of molecular symmetry and the ability to analyze the structure of a chemical compound to determine its symmetry group. The task is to identify the molecular symmetry group of product E, which is formed through reactions involving other substances. The options provided represent different symmetry groups, and the goal is to select the one that accurately describes the symmetry of product E."}