_:b19189 . _:b19504 . "prefixed coulomb"@en . _:b19503 . . _:b19504 . _:b19502 . _:b19505 . _:b20789 _:b20790 . _:b19502 . . _:b19503 "1"^^ . _:b19189 _:b20789 . _:b20791 _:b20792 . _:b19505 "1"^^ . _:b20792 . _:b20789 _:b19502 . _:b19189 . _:b19503 . _:b20790 _:b19503 . _:b20790 _:b20791 . _:b20792 _:b19505 . _:b19505 . _:b19502 . _:b20791 _:b19504 . _:b19504 .