bibbo bibio bibow bibri big-i bigig bigoo birgi bo-bo bobbi bobr bobri bogor boiro borbo borgo borio boro- boroo borow borro bowow brigg brigi brobo brrrr ggobi gibbi gibi- go-go go-oo gobbi gobbo gobig gobio gobir gogoi gogro goibo goobi goobo gorgo gorir gowri grigg grogg grrrr gwrgi ibibo ibogo iggri igigi igrow iiiii ioooi ioooo iorio irobo irori iworo o-r-b oboow oboro obowo obrow ogiri ogogo ooioo ooooo oribi origi origo orobo orrgo orrow ribbi ribo- rig-i rigio rigor ro-ro robbi robbo robo- robor rogoi rogow wi-wi wibro wiggo wigor woobi woori worow wowio wowow ww-ii wwiii wwwww