Ключевые слова: 3d, addiction, alkaloid, anesthetic, antiseptic, atom, atomic, atoms, bond, caffeine, chemical, chemistry, circle, coffee, composition, compound, creosote, drug, education, expectorant, flavor, food, formula, guaiacol, guayacol, guiacum, line, medicine, methoxyphenol, methylcatechol, model, molecular, molecule, nervous, organic, phosphatol, science, skeletal, smoke, smoky, soft, stimulant, structural, structure, taste, tea, veratrole, wood, xanthine,