-ji b-u bbb bbi bbk bbr bbu bi- bib bii bij bik bir biu bji bjj bjk bjr bju bkb bkk bkr brb bri brj brk brr bru bub bui buj buk bur buu ibb ibi ibj ibk ibr ibu iib iii iij iir iiu ijb iji ijk iju ikb iki ikk ikr iku ir- irb iri irj irk irr iru iu- iub iui iur j-i jbi jbj jbk jbr jbu jib jii jij jir jiu jjb jjj jjk jjr jju jkb jkk jkr jku jrb jri jrk jrr jub jui juk jur kbb kbi kbk kbr kbu kib kii kij kik kir kiu kjb kji kjr kju kkb kki kkk kkr kku kri krk krr kru kub kui kuj kuk kur kuu rbb rbi rbk rbr rbu rib rii rik rir rjk rjr rkb rkk rku rrb rri rrk rrr rru rub rui ruk rur ruu ubb ubi ubk ubr ubu uib uii uir uiu uji ukb uki ukk ukr uku ur- urb uri urk urr uru uur uuu