-er -ol eee eek eel eem eeo eep eer ees eie eii eik eil eim eio eip eir eis eke eki ekl eko ekp ekr eks ele eli elk ell elm elo elp elr els em- eme emi emk eml emm emo emp emr ems eo- eoe eoi eok eol eom eoo eop eor eos ep- epe epi epl epm epo epp epr eps ere eri erk erl erm ero erp err ers es- ese esi esk esl esm eso esp esr ess ie- iee iei iek iel iem iep ier ies iie iii iil iim iio iip iir iis ike iki ikk ikl iko ikr iks il- ile ili ilk ill ilm ilo ilp ilr ils im- ime imi iml imm imo imp ims io- ioe ioi iol iom ioo iop ior ios ipe ipi ipl ipm ipo ipp ipr ips ir- ire iri irk irl irm iro irp irr irs is- ise isi isk isl ism iso isp isr iss ke- kee kei kek kel kem keo kep ker kes kie kii kik kil kim kio kip kir kis kke kki kkk kkl kkm kkp kkr kks kl- kli klm klo klr kls kme kmi kmk kml kmm kmo kmp kms koe koi kok kol kom koo kop kor kos kpe kpi kpk kpl kpm kpo kpp kpr kps kri krk krl kro krp krr krs kse ksi ksk ksl ksm kso ksp ksr kss l-p lee lei lek lel lem leo lep ler les lie lii lik lil lim lio lip lir lis lkl lkp lkr lks lle lli llk lll llm llo llp llr lls lme lmi lmk lml lmm lmo lmp lmr lms loe loi lok lol lom loo lop lor los lpe lpi lpk lpl lpm lpo lpp lpr lps lri lrk lrm lro lrp lrr lrs lse lsi lsk lsl lsm lso lsp lsr lss m-o m-r mee mei mek mel mem meo mep mer mes mi- mie mii mik mil mim mio mip mir mis mke mkk mkl mkm mko mkp mkr mks mle mli mlk mll mlm mlo mlp mlr mls mme mmi mmk mml mmm mmo mmp mmr mms moe moi mok mol mom moo mop mor mos mpe mpi mpk mpl mpm mpo mpp mpr mps mre mri mrk mrl mrm mro mrp mrr mrs mse msi msk msl msm mso msp msr mss o-i oee oei oel oem oeo oep oer oes oie oii oik oil oim oio oip oir ois oke oki okk okl oko okp okr oks ole oli olk oll olm olo olp ols om- ome omi oml omm omo omp omr oms oo- ooi ook ool oom ooo oop oor oos op- ope opi opk opl opm opo opp opr ops or- ore ori ork orl orm oro orp orr ors os- ose osi osk osl osm oso osp osr oss p-p pee pei pek pel pem peo pep per pes pie pii pik pil pim pio pip pir pis pke pki pkl pkm pko pkp pkr pks ple pli plk pll plm plo plp plr pls pme pmi pmk pml pmm pmo pmp pmr pms poe poi pok pol pom poo pop por pos ppe ppi ppk ppl ppm ppo ppp ppr pps pre pri prk prl prm pro prp prr prs ps- pse psi psk psl psm pso psp psr pss re- ree rei rek rel rem reo rep rer res rie rii rik ril rim rio rip rir ris rke rkk rkm rko rkp rks rle rli rll rlm rlo rlp rlr rls rme rmi rml rmm rmo rmp rmr rms roe roi rok rol rom roo rop ror ros rpe rpi rpk rpl rpm rpo rpp rpr rps rri rrk rrl rrm rrp rrr rrs rse rsi rsk rsl rsm rso rsp rsr rss se- see sei sek sel sem seo sep ser ses sie sii sik sil sim sio sip sir sis sk- ske ski skk skl skm sko skp skr sks sle sli slk sll slm slo slp slr sls sme smi smk sml smm smo smp smr sms soe soi sok sol som soo sop sor sos spe spi spk spl spm spo spp spr sps sr- sre sri srk srl srm sro srp srr srs ss- sse ssi ssk ssl ssm sso ssp ssr sss