-er -ji b-u bbb bbe bbi bbr bbu be- beb bee bei ber beu bi- bib bie bii bij bir biu bji bjj bjr bju brb bre bri brj brr bru bub bue bui buj bur buu ebb ebe ebi ebj ebr ebu eeb eee eer eib eie eii eij eir eiu eji eju erb ere eri err eru eu- eub eue eui euj eur ibb ibe ibi ibj ibr ibu ie- iee iei iej ier iib iie iii iij iir iiu ijb ije iji iju ir- irb ire iri irj irr iru iu- iub iue iui iur j-i jbi jbj jbr jbu jeb jee jei jej jer jeu jib jie jii jij jir jiu jjb jjj jjr jju jrb jri jrr jub jue jui jur rbb rbe rbi rbr rbu re- reb ree rei rer reu rib rie rii rir rjr rrb rri rrr rru rub rue rui rur ruu ubb ube ubi ubr ubu ueb uee uei uer uib uie uii uir uiu uji ur- urb ure uri urr uru uue uur uuu