. "middle class"^^ . "0"^^ . . "107685049"@en-us . "middle class"@en-us . "0.0968829"^^ . . "0.0916719"^^ . . . "0.00235697"^^ . "08181658-n"^^ . . "0.147207"^^ . "0"^^ . . . . "106081359"@en-us . . . "108181658"^^ . . "0.0204969"^^ . "0.461178"^^ . "0.113681"^^ . "0.0665257"^^ . . . . "the social class between the lower and upper classes"@en-us . "bourgeoisie"@en-us .