. . "0"^^ . . . . "113164538"@en-us . . . "the state of being present; current existence; \"he tested for the presence of radon\""@en-us . . "0"^^ . . . . . . . . "13957601-n"^^ . . . . "presence"^^ . "the state of being present; current existence; \"he tested for the presence of radon\""@en-us . . . . "113957601"^^ . "presence"@en-us . . . .