-al -ol a-a a-b aaa aab aae aak aal aam aao aas ab- aba abb abe abk abl abm abo abs aea aeb aee aek ael aem aeo aes aka akb ake akk akl akm ako aks al- ala alb ale alk all alm alo als ama amb ame amk aml amm amo ams aoa aob aoe aok aol aom aoo aos as- asa asb ase ask asl asm aso ass baa bab bae bak bal bam bao bas bba bbb bbe bbk bbl bbm bbo bbs be- bea beb bee bek bel bem beo bes bka bkb bke bkk bkl bkm bko bks bla blb ble blk bll blm blo bls bma bmb bme bmk bml bmm bmo bms boa bob boe bok bol bom boo bos bsa bsb bse bsk bsl bsm bso bss eaa eab eae eak eal eam eao eas eba ebb ebe ebk ebl ebm ebo ebs eea eeb eee eek eel eem eeo ees eka ekb eke ekl eko eks ela elb ele elk ell elm elo els em- ema emb eme emk eml emm emo ems eo- eoa eob eoe eok eol eom eoo eos es- esa esb ese esk esl esm eso ess ka- kaa kab kae kak kal kam kao kas kba kbb kbe kbk kbl kbm kbo kbs ke- kea keb kee kek kel kem keo kes kkb kke kkk kkl kkm kks kl- kla klb klm klo kls kma kmb kme kmk kml kmm kmo kms koa kob koe kok kol kom koo kos ksa ksb kse ksk ksl ksm kso kss la- laa lab lae lak lal lam lao las lba lbb lbe lbk lbl lbm lbo lbs lea leb lee lek lel lem leo les lka lkb lkl lks lla llb lle llk lll llm llo lls lma lmb lme lmk lml lmm lmo lms loa lob loe lok lol lom loo los lsa lsb lse lsk lsl lsm lso lss m-o maa mab mae mak mal mam mao mas mba mbb mbe mbk mbl mbm mbo mbs mea meb mee mek mel mem meo mes mka mkb mke mkk mkl mkm mko mks mla mlb mle mlk mll mlm mlo mls mma mmb mme mmk mml mmm mmo mms moa mob moe mok mol mom moo mos msa msb mse msk msl msm mso mss oaa oab oae oak oal oam oao oas ob- oba obb obe obk obl obm obo obs oea oeb oee oel oem oeo oes oka okb oke okk okl oko oks ola olb ole olk oll olm olo ols om- oma omb ome oml omm omo oms oo- ooa oob ook ool oom ooo oos os- osa osb ose osk osl osm oso oss saa sab sae sak sal sam sao sas sba sbb sbe sbk sbl sbm sbo sbs se- sea seb see sek sel sem seo ses sk- ska skb ske skk skl skm sko sks sla slb sle slk sll slm slo sls sma smb sme smk sml smm smo sms soa sob soe sok sol som soo sos ss- ssa ssb sse ssk ssl ssm sso sss