-ol b-u bbb bbe bbi bbk bbl bbm bbo bbs bbu be- beb bee bei bek bel bem beo bes beu bi- bib bie bii bik bil bim bio bis biu bkb bke bkk bkl bkm bko bks blb ble bli blk bll blm blo bls blu bmb bme bmi bmk bml bmm bmo bms bmu bob boe boi bok bol bom boo bos bou bsb bse bsi bsk bsl bsm bso bss bsu bub bue bui buk bul bum buo bus buu ebb ebe ebi ebk ebl ebm ebo ebs ebu eeb eee eek eel eem eeo ees eib eie eii eik eil eim eio eis eiu ekb eke eki ekl eko eks eku elb ele eli elk ell elm elo els elu em- emb eme emi emk eml emm emo ems emu eo- eob eoe eoi eok eol eom eoo eos eou es- esb ese esi esk esl esm eso ess esu eu- eub eue eui eul eus ibb ibe ibi ibk ibl ibm ibo ibs ibu ie- iee iei iek iel iem ies iib iie iii iil iim iio iis iiu ikb ike iki ikk ikl iko iks iku il- ilb ile ili ilk ill ilm ilo ils ilu im- imb ime imi iml imm imo ims imu io- iob ioe ioi iol iom ioo ios iou is- isb ise isi isk isl ism iso iss isu iu- iub iue iui ium ius kbb kbe kbi kbk kbl kbm kbo kbs kbu ke- keb kee kei kek kel kem keo kes kib kie kii kik kil kim kio kis kiu kkb kke kki kkk kkl kkm kks kku kl- klb kli klm klo kls klu kmb kme kmi kmk kml kmm kmo kms kmu kob koe koi kok kol kom koo kos kou ksb kse ksi ksk ksl ksm kso kss ksu kub kue kui kuk kul kum kus kuu lbb lbe lbi lbk lbl lbm lbo lbs lbu leb lee lei lek lel lem leo les leu lib lie lii lik lil lim lio lis liu lkb lkl lks llb lle lli llk lll llm llo lls llu lmb lme lmi lmk lml lmm lmo lms lmu lob loe loi lok lol lom loo los lou lsb lse lsi lsk lsl lsm lso lss lsu lub lue lui luk lul lum luo lus luu m-o mbb mbe mbi mbk mbl mbm mbo mbs mbu meb mee mei mek mel mem meo mes meu mi- mib mie mii mik mil mim mio mis miu mkb mke mkk mkl mkm mko mks mku mlb mle mli mlk mll mlm mlo mls mlu mmb mme mmi mmk mml mmm mmo mms mmu mob moe moi mok mol mom moo mos mou msb mse msi msk msl msm mso mss msu mub mue mui muk mul mum mus muu o-i ob- obb obe obi obk obl obm obo obs obu oeb oee oei oel oem oeo oes oib oie oii oik oil oim oio ois oiu okb oke oki okk okl oko oks oku olb ole oli olk oll olm olo ols olu om- omb ome omi oml omm omo oms omu oo- oob ooi ook ool oom ooo oos os- osb ose osi osk osl osm oso oss osu ou- oue oui ouk oul oum ouo ous sbb sbe sbi sbk sbl sbm sbo sbs sbu se- seb see sei sek sel sem seo ses seu sib sie sii sik sil sim sio sis siu sk- skb ske ski skk skl skm sko sks sku slb sle sli slk sll slm slo sls slu smb sme smi smk sml smm smo sms smu sob soe soi sok sol som soo sos sou ss- ssb sse ssi ssk ssl ssm sso sss ssu sub sue sui suk sul sum suo sus suu ubb ube ubi ubk ubl ubo ubs ubu ueb uee uei uel uem ues uib uie uii uil uim uio uis uiu ukb uke uki ukk ukl uku ulb ule uli ulk ull ulm ulo uls ulu um- umb ume umi uml umm umo ums umu uob uoe uok uol uom uoo uos usb use usi usk usl usm uso uss usu uue uum uus uuu