{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Spectroscopy and Structure Identification", "refinement": "This problem involves analyzing NMR spectra to deduce the structure of an organic compound based on its molecular formula and spectral data.", "specific_scope": "The task is to identify compound X (C11H12O) by interpreting the provided 1H-NMR and 13C-NMR signals and matching them to the correct candidate structure.", "goal": "Determine the correct structure of compound X from the given options based on the spectral data."}, "summary": "This problem requires the application of organic chemistry principles, specifically the interpretation of NMR spectroscopy data to identify a compound's structure. The provided 1H-NMR and 13C-NMR signals give insights into the number of hydrogen and carbon environments in the molecule, which can be correlated with the molecular formula C11H12O. By analyzing the signal patterns and matching them with the candidate structures, the goal is to accurately identify compound X as 2-(4-methylstyryl)oxirane."}