Ir [irr] is listed in E16/E17/E18/E19/E20/E21/E22/E23/E24/E25/E26/E27/E28 as a separate language “closest to Ong [oog]” but, in fact, the two are “parfaitement identique” ( Ferlus, Michael 1974: 113 ), i.e., completely identical. See also: Ong-Ir [oog].