{"knowledge_schema": {"broad_category": "Chemistry \u2192 Inorganic Chemistry \u2192 Binary Compounds", "refinement": "This problem involves the study of binary compounds formed between fluorine and another element Y, focusing on their properties and decomposition behavior.", "specific_scope": "The specific context is the identification of the temperature range at which a bright-red substance A1 decomposes into another compound A2, given the molecular weight of A2.", "goal": "Determine the correct temperature range for the decomposition of substance A1 based on the provided options."}, "summary": "This problem pertains to inorganic chemistry, specifically the study of binary compounds involving fluorine. It focuses on the decomposition of a bright-red substance A1 into another compound A2 at a specific temperature. The task is to identify the correct temperature range for this decomposition from the given options. Understanding the properties of the compounds and their behavior at different temperatures is essential for solving this problem."}