-er -ol eee eek eel eem eeo eep eer eie eii eik eil eim eio eip eir eke eki ekl eko ekp ekr ele eli elk ell elm elo elp elr em- eme emi emk eml emm emo emp emr eo- eoe eoi eok eol eom eoo eop eor ep- epe epi epl epm epo epp epr ere eri erk erl erm ero erp err ie- iee iei iek iel iem iep ier iie iii iil iim iio iip iir ike iki ikk ikl iko ikr il- ile ili ilk ill ilm ilo ilp ilr im- ime imi iml imm imo imp io- ioe ioi iol iom ioo iop ior ipe ipi ipl ipm ipo ipp ipr ir- ire iri irk irl irm iro irp irr ke- kee kei kek kel kem keo kep ker kie kii kik kil kim kio kip kir kke kki kkk kkl kkm kkp kkr kl- kli klm klo klr kme kmi kmk kml kmm kmo kmp koe koi kok kol kom koo kop kor kpe kpi kpk kpl kpm kpo kpp kpr kri krk krl kro krp krr l-p lee lei lek lel lem leo lep ler lie lii lik lil lim lio lip lir lkl lkp lkr lle lli llk lll llm llo llp llr lme lmi lmk lml lmm lmo lmp lmr loe loi lok lol lom loo lop lor lpe lpi lpk lpl lpm lpo lpp lpr lri lrk lrm lro lrp lrr m-o m-r mee mei mek mel mem meo mep mer mi- mie mii mik mil mim mio mip mir mke mkk mkl mkm mko mkp mkr mle mli mlk mll mlm mlo mlp mlr mme mmi mmk mml mmm mmo mmp mmr moe moi mok mol mom moo mop mor mpe mpi mpk mpl mpm mpo mpp mpr mre mri mrk mrl mrm mro mrp mrr o-i oee oei oel oem oeo oep oer oie oii oik oil oim oio oip oir oke oki okk okl oko okp okr ole oli olk oll olm olo olp om- ome omi oml omm omo omp omr oo- ooi ook ool oom ooo oop oor op- ope opi opk opl opm opo opp opr or- ore ori ork orl orm oro orp orr p-p pee pei pek pel pem peo pep per pie pii pik pil pim pio pip pir pke pki pkl pkm pko pkp pkr ple pli plk pll plm plo plp plr pme pmi pmk pml pmm pmo pmp pmr poe poi pok pol pom poo pop por ppe ppi ppk ppl ppm ppo ppp ppr pre pri prk prl prm pro prp prr re- ree rei rek rel rem reo rep rer rie rii rik ril rim rio rip rir rke rkk rkm rko rkp rle rli rll rlm rlo rlp rlr rme rmi rml rmm rmo rmp rmr roe roi rok rol rom roo rop ror rpe rpi rpk rpl rpm rpo rpp rpr rri rrk rrl rrm rrp rrr