-er eee eek eel eem eep eer eie eii eik eil eim eip eir eke eki ekl ekp ekr ele eli elk ell elm elp elr em- eme emi emk eml emm emp emr ep- epe epi epl epm epp epr ere eri erk erl erm erp err ie- iee iei iek iel iem iep ier iie iii iil iim iip iir ike iki ikk ikl ikr il- ile ili ilk ill ilm ilp ilr im- ime imi iml imm imp ipe ipi ipl ipm ipp ipr ir- ire iri irk irl irm irp irr ke- kee kei kek kel kem kep ker kie kii kik kil kim kip kir kke kki kkk kkl kkm kkp kkr kl- kli klm klr kme kmi kmk kml kmm kmp kpe kpi kpk kpl kpm kpp kpr kri krk krl krp krr l-p lee lei lek lel lem lep ler lie lii lik lil lim lip lir lkl lkp lkr lle lli llk lll llm llp llr lme lmi lmk lml lmm lmp lmr lpe lpi lpk lpl lpm lpp lpr lri lrk lrm lrp lrr m-r mee mei mek mel mem mep mer mi- mie mii mik mil mim mip mir mke mkk mkl mkm mkp mkr mle mli mlk mll mlm mlp mlr mme mmi mmk mml mmm mmp mmr mpe mpi mpk mpl mpm mpp mpr mre mri mrk mrl mrm mrp mrr p-p pee pei pek pel pem pep per pie pii pik pil pim pip pir pke pki pkl pkm pkp pkr ple pli plk pll plm plp plr pme pmi pmk pml pmm pmp pmr ppe ppi ppk ppl ppm ppp ppr pre pri prk prl prm prp prr re- ree rei rek rel rem rep rer rie rii rik ril rim rip rir rke rkk rkm rkp rle rli rll rlm rlp rlr rme rmi rml rmm rmp rmr rpe rpi rpk rpl rpm rpp rpr rri rrk rrl rrm rrp rrr