. . . "Scope note:\nThis property allows instances of E18 Physical Thing to be analysed into component elements.\nComponent elements, since they are themselves instances of E18 Physical Thing, may be further analysed into sub-components, thereby creating a hierarchy of part decomposition. An instance of E18 Physical Thing may be shared between multiple wholes, for example two buildings may share a common wall.\nThis property is intended to describe specific components that are individually documented, rather than general aspects. Overall descriptions of the structure of an instance of E18 Physical Thing are captured by the P3 has note property.\nThe instances of E57 Materials of which an item of E18 Physical Thing is composed should be documented using P45 consists of (is incorporated in).\n\nExamples:\n- the Royal carriage (E22) forms part of the Royal train (E22)\n- the \"Hog's Back\" (E24) forms part of the \"Fosseway\" (E24)"@en . . . "P46 is composed of"@en . "P46"^^ . .