. "ontology"@en-us . . "ontology"^^ . "06162847-n"^^ . . "0.25"^^ . . . . . "the metaphysical study of the nature of being and existence"@en-us . . "106162847"^^ . . . "0"^^ . . "the metaphysical study of the nature of being and existence"@en-us . "105792759"@en-us . "104680908"@en-us . . .