-er -ol eee eek eel eeo eep eer ees eet eke ekl eko ekp ekr eks ekt ele elk ell elo elp elr els elt eo- eoe eok eol eoo eop eor eos eot ep- epe epl epo epp epr eps ept ere erk erl ero erp err ers ert es- ese esk esl eso esp esr ess est ete etk etl eto etp etr ets ett k-t ke- kee kek kel keo kep ker kes ket kke kkk kkl kkp kkr kks kkt kl- klo klr kls klt koe kok kol koo kop kor kos kot kpe kpk kpl kpo kpp kpr kps kpt krk krl kro krp krr krs krt kse ksk ksl kso ksp ksr kss kst kte ktk ktl kto ktp ktr kts ktt l-p lee lek lel leo lep ler les let lkl lkp lkr lks lkt lle llk lll llo llp llr lls llt loe lok lol loo lop lor los lot lpe lpk lpl lpo lpp lpr lps lpt lrk lro lrp lrr lrs lrt lse lsk lsl lso lsp lsr lss lst lte ltk ltl lto ltp ltr lts ltt oee oel oeo oep oer oes oet oke okk okl oko okp okr oks ole olk oll olo olp ols olt oo- ook ool ooo oop oor oos oot op- ope opk opl opo opp opr ops opt or- ore ork orl oro orp orr ors ort os- ose osk osl oso osp osr oss ost ot- ote otk otl oto otp otr ots ott p-p pee pek pel peo pep per pes pet pke pkl pko pkp pkr pks pkt ple plk pll plo plp plr pls plt poe pok pol poo pop por pos pot ppe ppk ppl ppo ppp ppr pps ppt pre prk prl pro prp prr prs prt ps- pse psk psl pso psp psr pss pst pt- pte ptk ptl pto ptp ptr pts ptt re- ree rek rel reo rep rer res ret rke rkk rko rkp rks rkt rle rll rlo rlp rlr rls rlt roe rok rol roo rop ror ros rot rpe rpk rpl rpo rpp rpr rps rpt rrk rrl rrp rrr rrs rrt rse rsk rsl rso rsp rsr rss rst rte rtk rtl rto rtp rtr rts rtt se- see sek sel seo sep ser ses set sk- ske skk skl sko skp skr sks skt sle slk sll slo slp slr sls slt soe sok sol soo sop sor sos sot spe spk spl spo spp spr sps spt sr- sre srk srl sro srp srr srs srt ss- sse ssk ssl sso ssp ssr sss sst ste stk stl sto stp str sts stt te- tee tek tel teo tep ter tes tet tke tkk tkl tko tkp tkr tks tkt tle tlk tll tlo tlp tlr tls tlt to- toe tok tol too top tor tos tot tpe tpk tpl tpo tpp tpr tps tpt tre trk trl tro trp trr trs trt tse tsk tsl tso tsp tsr tss tst tte ttk ttl tto ttp ttr tts ttt