-er b-u bbb bbe bbh bbi bbk bbl bbr bbu be- beb bee beh bei bek bel ber beu bhb bhe bhh bhi bhk bhl bhr bhu bi- bib bie bih bii bik bil bir biu bkb bke bkk bkl bkr blb ble blh bli blk bll blr blu brb bre brh bri brk brl brr bru bub bue buh bui buk bul bur buu ebb ebe ebh ebi ebk ebl ebr ebu eeb eee eek eel eer ehb ehe ehh ehi ehl ehr ehu eib eie eii eik eil eir eiu ekb eke ekh eki ekl ekr eku elb ele elh eli elk ell elr elu erb ere erh eri erk erl err eru eu- eub eue eui eul eur h-i hbb hbe hbh hbi hbk hbl hbr hbu he- heb hee heh hei hek hel her heu hhb hhe hhh hhi hhk hhl hhr hhu hib hie hih hii hik hil hir hiu hkb hkh hki hkk hkl hkr hku hlb hle hlh hli hll hlr hlu hr- hrb hre hrh hri hrk hrl hrr hru hub hue huh hui huk hul hur huu ibb ibe ibh ibi ibk ibl ibr ibu ie- iee iei iek iel ier ihb ihe ihh ihi ihk ihl ihr ihu iib iie iih iii iil iir iiu ikb ike iki ikk ikl ikr iku il- ilb ile ilh ili ilk ill ilr ilu ir- irb ire iri irk irl irr iru iu- iub iue iui iur kbb kbe kbh kbi kbk kbl kbr kbu ke- keb kee keh kei kek kel ker khe khh khi khk khr khu kib kie kih kii kik kil kir kiu kkb kke kkh kki kkk kkl kkr kku kl- klb klh kli klr klu kri krk krl krr kru kub kue kuh kui kuk kul kur kuu lbb lbe lbh lbi lbk lbl lbr lbu leb lee leh lei lek lel ler leu lhb lhh lhi lhk lhr lhu lib lie lih lii lik lil lir liu lkb lkh lkl lkr llb lle lli llk lll llr llu lrb lrh lri lrk lrr lru lub lue luh lui luk lul lur luu rbb rbe rbh rbi rbk rbl rbr rbu re- reb ree reh rei rek rel rer reu rh- rhb rhe rhh rhi rhl rhr rhu rib rie rih rii rik ril rir rkb rke rkk rku rle rlh rli rll rlr rlu rrb rrh rri rrk rrl rrr rru rub rue ruh rui ruk rur ruu ubb ube ubh ubi ubk ubl ubr ubu ueb uee ueh uei uel uer uhb uhe uhh uhi uhl uhr uhu uib uie uii uil uir uiu ukb uke uki ukk ukl ukr uku ulb ule uli ulk ull ulr ulu ur- urb ure uri urk url urr uru uue uur uuu