"0.220267"^^ . "backache"@en-us . "0.0245688"^^ . . "0"^^ . . . "backache"^^ . "an ache localized in the back"@en-us . "110280953"@en-us . "114325335"^^ . "113513315"@en-us . . . . "0"^^ . "14325335-n"^^ . . . "0.379897"^^ . "0.0315462"^^ . "0.198508"^^ . "0.0453771"^^ . "0.099836"^^ . "NAN"^^ . .