"NAN"^^ . . "NAN"^^ . . "NAN"^^ . "NAN"^^ . "NAN"^^ . "sub"^^ . "sub"^^ . "0"^^ . "300815586"@en-us . "300815586"^^ . "300781083"@en-us . "0"^^ . "NAN"^^ . "indicating the first or earliest or original; \"`proto' is a combining form in a word like `protolanguage' that refers to the hypothetical ancestor of another language or group of languages\""@en-us . "NAN"^^ . . "NAN"^^ . . . "00815586-a"^^ . . "proto"^^ . "proto"@en-us .