-er b-u bbb bbe bbi bbl bbm bbr bbu be- beb bee bei bel bem ber beu bez bi- bib bie bii bil bim bir biu biz blb ble bli bll blm blr blu blz bmb bme bmi bml bmm bmr bmu bmz brb bre bri brl brm brr bru brz bub bue bui bul bum bur buu buz bze bzr bzu bzz ebb ebe ebi ebl ebm ebr ebu eeb eee eel eem eer eib eie eii eil eim eir eiu elb ele eli ell elm elr elu elz em- emb eme emi eml emm emr emu erb ere eri erl erm err eru erz eu- eub eue eui eul eur eze ezr ezz ibb ibe ibi ibl ibm ibr ibu ibz ie- iee iei iel iem ier iib iie iii iil iim iir iiu il- ilb ile ili ill ilm ilr ilu ilz im- imb ime imi iml imm imu imz ir- irb ire iri irl irm irr iru iu- iub iue iui ium iur iuz ize izi izm izu izz lbb lbe lbi lbl lbm lbr lbu leb lee lei lel lem ler leu lez lib lie lii lil lim lir liu liz llb lle lli lll llm llr llu llz lmb lme lmi lml lmm lmr lmu lrb lri lrm lrr lru lrz lub lue lui lul lum lur luu luz lzi lzr lzu m-r mbb mbe mbi mbl mbm mbr mbu meb mee mei mel mem mer meu mez mi- mib mie mii mil mim mir miu miz mlb mle mli mll mlm mlr mlu mmb mme mmi mml mmm mmr mmu mmz mrb mre mri mrl mrm mrr mru mrz mub mue mui mul mum mur muu mzb mzi mzm rbb rbe rbi rbl rbm rbr rbu re- reb ree rei rel rem rer reu rez rib rie rii ril rim rir riz rle rli rll rlm rlr rlu rmb rme rmi rml rmm rmr rrb rri rrl rrm rrr rru rub rue rui rum rur ruu ruz rzb rze rzm ubb ube ubi ubl ubr ubu ueb uee uei uel uem uer uib uie uii uil uim uir uiu ulb ule uli ull ulm ulr ulu um- umb ume umi uml umm umr umu ur- urb ure uri url urm urr uru urz uue uum uur uuu uzb uzi uzu zbb zbl zbm zbr zeb zee zel zem zer zez zib zie zil zim zir ziz zlr zmb zmm zrl zub zui zul zum zur zuz zzr zzz