-er eee eek eel eem eep eer ees eie eii eik eil eim eip eir eis eke eki ekl ekp ekr eks ele eli elk ell elm elp elr els em- eme emi emk eml emm emp emr ems ep- epe epi epl epm epp epr eps ere eri erk erl erm erp err ers es- ese esi esk esl esm esp esr ess ie- iee iei iek iel iem iep ier ies iie iii iil iim iip iir iis ike iki ikk ikl ikr iks il- ile ili ilk ill ilm ilp ilr ils im- ime imi iml imm imp ims ipe ipi ipl ipm ipp ipr ips ir- ire iri irk irl irm irp irr irs is- ise isi isk isl ism isp isr iss ke- kee kei kek kel kem kep ker kes kie kii kik kil kim kip kir kis kke kki kkk kkl kkm kkp kkr kks kl- kli klm klr kls kme kmi kmk kml kmm kmp kms kpe kpi kpk kpl kpm kpp kpr kps kri krk krl krp krr krs kse ksi ksk ksl ksm ksp ksr kss l-p lee lei lek lel lem lep ler les lie lii lik lil lim lip lir lis lkl lkp lkr lks lle lli llk lll llm llp llr lls lme lmi lmk lml lmm lmp lmr lms lpe lpi lpk lpl lpm lpp lpr lps lri lrk lrm lrp lrr lrs lse lsi lsk lsl lsm lsp lsr lss m-r mee mei mek mel mem mep mer mes mi- mie mii mik mil mim mip mir mis mke mkk mkl mkm mkp mkr mks mle mli mlk mll mlm mlp mlr mls mme mmi mmk mml mmm mmp mmr mms mpe mpi mpk mpl mpm mpp mpr mps mre mri mrk mrl mrm mrp mrr mrs mse msi msk msl msm msp msr mss p-p pee pei pek pel pem pep per pes pie pii pik pil pim pip pir pis pke pki pkl pkm pkp pkr pks ple pli plk pll plm plp plr pls pme pmi pmk pml pmm pmp pmr pms ppe ppi ppk ppl ppm ppp ppr pps pre pri prk prl prm prp prr prs ps- pse psi psk psl psm psp psr pss re- ree rei rek rel rem rep rer res rie rii rik ril rim rip rir ris rke rkk rkm rkp rks rle rli rll rlm rlp rlr rls rme rmi rml rmm rmp rmr rms rpe rpi rpk rpl rpm rpp rpr rps rri rrk rrl rrm rrp rrr rrs rse rsi rsk rsl rsm rsp rsr rss se- see sei sek sel sem sep ser ses sie sii sik sil sim sip sir sis sk- ske ski skk skl skm skp skr sks sle sli slk sll slm slp slr sls sme smi smk sml smm smp smr sms spe spi spk spl spm spp spr sps sr- sre sri srk srl srm srp srr srs ss- sse ssi ssk ssl ssm ssp ssr sss