-er -up eee eel eep eer ees eet eie eii eil eip eir eis eit eiu ele eli ell elp elr els elt elu ep- epe epi epl epp epr eps ept epu ere eri erl erp err ers ert eru es- ese esi esl esp esr ess est esu ete eti etl etp etr ets ett etu eu- eue eui eul eup eur eus eut ie- iee iei iel iep ier ies iet iie iii iil iip iir iis iit iiu il- ile ili ill ilp ilr ils ilt ilu ipe ipi ipl ipp ipr ips ipt ipu ir- ire iri irl irp irr irs irt iru is- ise isi isl isp isr iss ist isu ite iti itl itp its itt itu iu- iue iui iup iur ius iut l-p lee lei lel lep ler les let leu lie lii lil lip lir lis lit liu lle lli lll llp llr lls llt llu lpe lpi lpl lpp lpr lps lpt lpu lri lrp lrr lrs lrt lru lse lsi lsl lsp lsr lss lst lsu lte lti ltl ltp ltr lts ltt ltu lue lui lul lup lur lus lut luu p-p pee pei pel pep per pes pet peu pie pii pil pip pir pis pit piu ple pli pll plp plr pls plt plu ppe ppi ppl ppp ppr pps ppt ppu pre pri prl prp prr prs prt pru ps- pse psi psl psp psr pss pst psu pt- pte pti ptl ptp ptr pts ptt ptu pue pui pul pup pur pus put puu re- ree rei rel rep rer res ret reu rie rii ril rip rir ris rit rle rli rll rlp rlr rls rlt rlu rpe rpi rpl rpp rpr rps rpt rpu rri rrl rrp rrr rrs rrt rru rse rsi rsl rsp rsr rss rst rsu rte rti rtl rtp rtr rts rtt rtu rue rui rup rur rus rut ruu se- see sei sel sep ser ses set seu sie sii sil sip sir sis sit siu sle sli sll slp slr sls slt slu spe spi spl spp spr sps spt spu sr- sre sri srl srp srr srs srt ss- sse ssi ssl ssp ssr sss sst ssu ste sti stl stp str sts stt stu sue sui sul sup sur sus sut suu te- tee tei tel tep ter tes tet teu tie tii til tip tir tis tit tiu tle tli tll tlp tlr tls tlt tlu tpe tpi tpl tpp tpr tps tpt tpu tre tri trl trp trr trs trt tru tse tsi tsl tsp tsr tss tst tsu tte tti ttl ttp ttr tts ttt ttu tue tui tul tup tur tus tut tuu uee uei uel uep uer ues uet uie uii uil uip uir uis uit uiu ule uli ull ulp ulr uls ult ulu up- upe upi upp upr ups upt upu ur- ure uri url urp urr urs urt uru use usi usl usp usr uss ust usu ute uti utl utp utr uts utt utu uue uur uus uut uuu