"P129"^^ . "Scope note:\nThis property documents that an E89 Propositional Object has as subject an instance of E1 CRM Entity.\n\nThis differs from P67 refers to (is referred to by), which refers to an E1 CRM Entity, in that it describes the primary subject or subjects of an E89 Propositional Object.\n\nExamples:\n- The text entitled 'Reach for the sky' (E33) is about Douglas Bader (E21)\n\nIn First Order Logic:\nP129(x,y) \u2283 E89(x)\nP129(x,y) \u2283 E1(y)\nP129(x,y) \u2283 P67(x,y)"@en . . "P129 is about"@en . . . . .