bibri big-i bigig birgi birgu birmi birum birur bmiii brigg brigi brimm brmmm brrrr brugg bruiu brumm bruri bumbu burgi burgu burim burri burru buumi gibbi gibi- gimbi gimri girru gmiri grgur grigg grimm grrrr grubb gruiu gubbi gubru guggi gugir guiri gummb gummi gurgi gurum gurur i-m-r ibbur iggri igigi igrim iiiii imgur irimi mbgbi mbiri mburu mi-mi mimir mimmi mirim mirri mmiii mmmmm mrbig mugur muiri mumbi mummu murmi murri murru murum ribbi rig-i rimmi rimur rubbi rubim rugii rugir ruiru rummi rummu ubirr ugrug uigur umbri umiri urubu urumi ururi uuuuu