. "RO:0002473"^^ . . . . . . . "uberon"^^ . . "composed primarily of"^^ . "'otolith organ' SubClassOf 'composed primarily of' some 'calcium carbonate'" . . "composed_primarily_of"^^ . . . . "Chris Mungall" . . "composed_primarily_of"^^ . . "composed primarily of" . . "x composed_primarily_of y if and only if more than half of the mass of x is made from y or units of the same type as y." . "x composed_primarily_of y iff: more than half of the mass of x is made from parts of y"^^ . . .