{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Reactions and Mechanisms", "refinement": "This problem focuses on the Michael addition reaction, which involves the nucleophilic attack of enolates on \u03b1,\u03b2-unsaturated carbonyl compounds.", "specific_scope": "The task is to identify the reactants and major products of specific Michael addition reactions involving given organic compounds and reagents.", "goal": "Determine the correct products for the Michael addition reactions based on the provided reactants and conditions."}, "summary": "This problem involves understanding the Michael addition reaction, where nucleophiles attack \u03b1,\u03b2-unsaturated carbonyl compounds. The task is to identify the major products formed from specific reactants in the given reactions. The correct answers indicate the products formed after the reactions, which include trimethyl 2-(p-tolyl)propane-1,1,3-tricarboxylate for reaction A, 3-(2-oxocyclohexyl)butanenitrile for reaction B, and cyclohexane-1,3-dione for reaction C."}