-er -ol eee eel eeo eep eer ees eet eex ele ell elo elp elr els elt elx eo- eoe eol eoo eop eor eos eot ep- epe epl epo epp epr eps ept epx ere erl ero erp err ers ert es- ese esl eso esp esr ess est esx ete etl eto etp etr ets ett etx ex- exe exl exo exp exr exs ext exx l-p lee lel leo lep ler les let lex lle lll llo llp llr lls llt loe lol loo lop lor los lot lox lpe lpl lpo lpp lpr lps lpt lpx lro lrp lrr lrs lrt lse lsl lso lsp lsr lss lst lte ltl lto ltp ltr lts ltt ltx lxo lxr lxx oee oel oeo oep oer oes oet oex ole oll olo olp ols olt oo- ool ooo oop oor oos oot oox op- ope opl opo opp opr ops opt opx or- ore orl oro orp orr ors ort orx os- ose osl oso osp osr oss ost osx ot- ote otl oto otp otr ots ott ox- oxo oxt oxx p-p pee pel peo pep per pes pet pex ple pll plo plp plr pls plt plx poe pol poo pop por pos pot pox ppe ppl ppo ppp ppr pps ppt ppx pre prl pro prp prr prs prt prx ps- pse psl pso psp psr pss pst psx pt- pte ptl pto ptp ptr pts ptt ptx pxe pxl pxr pxs pxt re- ree rel reo rep rer res ret rex rle rll rlo rlp rlr rls rlt roe rol roo rop ror ros rot rox rpe rpl rpo rpp rpr rps rpt rpx rrl rrp rrr rrs rrt rse rsl rso rsp rsr rss rst rsx rte rtl rto rtp rtr rts rtt rtx rxp rxr rxs se- see sel seo sep ser ses set sex sle sll slo slp slr sls slt slx soe sol soo sop sor sos sot sox spe spl spo spp spr sps spt spx sr- sre srl sro srp srr srs srt srx ss- sse ssl sso ssp ssr sss sst ssx ste stl sto stp str sts stt stx sxl sxs sxt t-x te- tee tel teo tep ter tes tet tex tle tll tlo tlp tlr tls tlt tlx to- toe tol too top tor tos tot tox tpe tpl tpo tpp tpr tps tpt tpx tre trl tro trp trr trs trt trx tse tsl tso tsp tsr tss tst tsx tte ttl tto ttp ttr tts ttt ttx txe txl txs txt xee xel xep xer xes xet xex xlr xls xlt xoo xop xor xos xot xox xpe xpl xpo xpp xps xpt xrt xrx xsl xsp xss xst xtp xtr xts xtx xxl xxo xxp xxx