-er eee eek eem eeo eep eer ees eet eie eii eik eim eio eip eir eis eit eke eki eko ekp ekr eks ekt em- eme emi emk emm emo emp emr ems emt eo- eoe eoi eok eom eoo eop eor eos eot ep- epe epi epm epo epp epr eps ept ere eri erk erm ero erp err ers ert es- ese esi esk esm eso esp esr ess est ete eti etk etm eto etp etr ets ett ie- iee iei iek iem iep ier ies iet iie iii iim iio iip iir iis iit ike iki ikk iko ikr iks ikt im- ime imi imm imo imp ims imt io- ioe ioi iom ioo iop ior ios iot ipe ipi ipm ipo ipp ipr ips ipt ir- ire iri irk irm iro irp irr irs irt is- ise isi isk ism iso isp isr iss ist ite iti itk itm ito itp its itt k-t ke- kee kei kek kem keo kep ker kes ket kie kii kik kim kio kip kir kis kit kke kki kkk kkm kkp kkr kks kkt kme kmi kmk kmm kmo kmp kms kmt koe koi kok kom koo kop kor kos kot kpe kpi kpk kpm kpo kpp kpr kps kpt kri krk kro krp krr krs krt kse ksi ksk ksm kso ksp ksr kss kst kte ktk ktm kto ktp ktr kts ktt m-o m-r mee mei mek mem meo mep mer mes met mi- mie mii mik mim mio mip mir mis mit mke mkk mkm mko mkp mkr mks mkt mme mmi mmk mmm mmo mmp mmr mms mmt moe moi mok mom moo mop mor mos mot mpe mpi mpk mpm mpo mpp mpr mps mpt mre mri mrk mrm mro mrp mrr mrs mrt mse msi msk msm mso msp msr mss mst mte mti mtk mtm mto mtp mtr mts mtt o-i oee oei oem oeo oep oer oes oet oie oii oik oim oio oip oir ois oit oke oki okk oko okp okr oks om- ome omi omm omo omp omr oms omt oo- ooi ook oom ooo oop oor oos oot op- ope opi opk opm opo opp opr ops opt or- ore ori ork orm oro orp orr ors ort os- ose osi osk osm oso osp osr oss ost ot- ote oti otk otm oto otp otr ots ott p-p pee pei pek pem peo pep per pes pet pie pii pik pim pio pip pir pis pit pke pki pkm pko pkp pkr pks pkt pme pmi pmk pmm pmo pmp pmr pms pmt poe poi pok pom poo pop por pos pot ppe ppi ppk ppm ppo ppp ppr pps ppt pre pri prk prm pro prp prr prs prt ps- pse psi psk psm pso psp psr pss pst pt- pte pti ptk ptm pto ptp ptr pts ptt re- ree rei rek rem reo rep rer res ret rie rii rik rim rio rip rir ris rit rke rkk rkm rko rkp rks rkt rme rmi rmm rmo rmp rmr rms rmt roe roi rok rom roo rop ror ros rot rpe rpi rpk rpm rpo rpp rpr rps rpt rri rrk rrm rrp rrr rrs rrt rse rsi rsk rsm rso rsp rsr rss rst rte rti rtk rtm rto rtp rtr rts rtt se- see sei sek sem seo sep ser ses set sie sii sik sim sio sip sir sis sit sk- ske ski skk skm sko skp skr sks skt sme smi smk smm smo smp smr sms smt soe soi sok som soo sop sor sos sot spe spi spk spm spo spp spr sps spt sr- sre sri srk srm sro srp srr srs srt ss- sse ssi ssk ssm sso ssp ssr sss sst ste sti stk stm sto stp str sts stt te- tee tei tek tem teo tep ter tes tet tie tii tik tim tio tip tir tis tit tke tkk tkm tko tkp tkr tks tkt tme tmi tmk tmm tmo tmp tmr tms tmt to- toe toi tok tom too top tor tos tot tpe tpi tpk tpm tpo tpp tpr tps tpt tre tri trk trm tro trp trr trs trt tse tsi tsk tsm tso tsp tsr tss tst tte tti ttk ttm tto ttp ttr tts ttt