+ concentr{
+ karat{
+ dnam{"karats"}
+ one{"{0} karat"}
+ other{"{0} karats"}
+ }
+ milligram-per-deciliter{
+ dnam{"milligrams per deciliter"}
+ one{"{0} milligram per deciliter"}
+ other{"{0} milligrams per deciliter"}
+ }
+ millimole-per-liter{
+ dnam{"millimoles per liter"}
+ one{"{0} millimole per liter"}
+ other{"{0} millimoles per liter"}
+ }
+ part-per-million{
+ dnam{"parts per million"}
+ one{"{0} part per million"}
+ other{"{0} parts per million"}
+ }
+ }