-er -ji bbb bbe bbg bbi bbk bbr be- beb bee beg bei bek ber bgb bge bgg bgi bgk bgr bi- bib bie big bii bij bik bir bjg bji bjj bjk bjr bkb bke bkg bkk bkr brb bre brg bri brj brk brr ebb ebe ebg ebi ebj ebk ebr eeb eee eeg eek eer egb ege egg egi egr eib eie eig eii eij eik eir eji ekb eke ekg eki ekr erb ere erg eri erk err gbe gbg gbi gbj gbk gbr ge- geb gee geg gei gek ger ggb ggg ggi ggj ggr gib gie gig gii gij gik gir gje gjg gjr gkb grb gre grg gri grj grk grr ibb ibe ibg ibi ibj ibk ibr ie- iee ieg iei iej iek ier igb ige igg igi igk igr iib iie iii iij iir ijb ije ijg iji ijk ikb ike iki ikk ikr ir- irb ire irg iri irj irk irr j-i jbg jbi jbj jbk jbr jeb jee jeg jei jej jek jer jgb jge jgi jgr jib jie jig jii jij jir jjb jjg jjj jjk jjr jkb jkk jkr jrb jrg jri jrk jrr kbb kbe kbi kbk kbr ke- keb kee keg kei kek ker kgb kgi kib kie kig kii kij kik kir kjb kje kji kjr kkb kke kki kkk kkr krg kri krk krr rbb rbe rbg rbi rbk rbr re- reb ree reg rei rek rer rgb rge rgg rgi rgk rgr rib rie rig rii rik rir rjg rjk rjr rkb rke rkg rkk rrb rrg rri rrk rrr