-er -ol eee eel eeo eep eer ees eie eii eil eio eip eir eis ele eli ell elo elp elr els eo- eoe eoi eol eoo eop eor eos ep- epe epi epl epo epp epr eps ere eri erl ero erp err ers es- ese esi esl eso esp esr ess ie- iee iei iel iep ier ies iie iii iil iio iip iir iis il- ile ili ill ilo ilp ilr ils io- ioe ioi iol ioo iop ior ios ipe ipi ipl ipo ipp ipr ips ir- ire iri irl iro irp irr irs is- ise isi isl iso isp isr iss l-p lee lei lel leo lep ler les lie lii lil lio lip lir lis lle lli lll llo llp llr lls loe loi lol loo lop lor los lpe lpi lpl lpo lpp lpr lps lri lro lrp lrr lrs lse lsi lsl lso lsp lsr lss o-i oee oei oel oeo oep oer oes oie oii oil oio oip oir ois ole oli oll olo olp ols oo- ooi ool ooo oop oor oos op- ope opi opl opo opp opr ops or- ore ori orl oro orp orr ors os- ose osi osl oso osp osr oss p-p pee pei pel peo pep per pes pie pii pil pio pip pir pis ple pli pll plo plp plr pls poe poi pol poo pop por pos ppe ppi ppl ppo ppp ppr pps pre pri prl pro prp prr prs ps- pse psi psl pso psp psr pss re- ree rei rel reo rep rer res rie rii ril rio rip rir ris rle rli rll rlo rlp rlr rls roe roi rol roo rop ror ros rpe rpi rpl rpo rpp rpr rps rri rrl rrp rrr rrs rse rsi rsl rso rsp rsr rss se- see sei sel seo sep ser ses sie sii sil sio sip sir sis sle sli sll slo slp slr sls soe soi sol soo sop sor sos spe spi spl spo spp spr sps sr- sre sri srl sro srp srr srs ss- sse ssi ssl sso ssp ssr sss