-er -up eee eef eep eer ees eet ef- efe eff efi efp efr efs eft eie eif eii eip eir eis eit eiu ep- epe epf epi epp epr eps ept epu ere erf eri erp err ers ert eru es- ese esf esi esp esr ess est esu ete etf eti etp etr ets ett etu eu- eue euf eui eup eur eus eut fee fef fei fep fer fes fet feu ffe fff ffi ffp ffr ffs fft ffu fie fif fii fip fir fis fit fiu fpe fpi fpp fpr fps fpt fpu fre frf fri frp frr frs frt fru fse fsf fsi fsp fsr fss fst fsu fte ftf fti ftp ftr fts ftt ftu fue fuf fui fup fur fus fut fuu i-f ie- iee ief iei iep ier ies iet ife iff ifi ifp ifr ifs ift ifu iie iif iii iip iir iis iit iiu ipe ipf ipi ipp ipr ips ipt ipu ir- ire irf iri irp irr irs irt iru is- ise isf isi isp isr iss ist isu ite itf iti itp its itt itu iu- iue iui iup iur ius iut p-p pee pef pei pep per pes pet peu pfe pff pfi pfp pfr pfs pft pfu pie pif pii pip pir pis pit piu ppe ppf ppi ppp ppr pps ppt ppu pre prf pri prp prr prs prt pru ps- pse psf psi psp psr pss pst psu pt- pte ptf pti ptp ptr pts ptt ptu pue puf pui pup pur pus put puu re- ree ref rei rep rer res ret reu rfe rff rfi rfp rfr rfs rft rfu rie rif rii rip rir ris rit rpe rpf rpi rpp rpr rps rpt rpu rrf rri rrp rrr rrs rrt rru rse rsf rsi rsp rsr rss rst rsu rte rtf rti rtp rtr rts rtt rtu rue ruf rui rup rur rus rut ruu se- see sef sei sep ser ses set seu sfe sff sfi sfp sfr sfs sft sfu sie sif sii sip sir sis sit siu spe spf spi spp spr sps spt spu sr- sre srf sri srp srr srs srt ss- sse ssf ssi ssp ssr sss sst ssu ste stf sti stp str sts stt stu sue suf sui sup sur sus sut suu te- tee tef tei tep ter tes tet teu tfe tff tfi tfp tfr tfs tft tfu tie tif tii tip tir tis tit tiu tpe tpf tpi tpp tpr tps tpt tpu tre trf tri trp trr trs trt tru tse tsf tsi tsp tsr tss tst tsu tte ttf tti ttp ttr tts ttt ttu tue tuf tui tup tur tus tut tuu uee uef uei uep uer ues uet ufe uff ufi ufp ufr ufs uft ufu uie uif uii uip uir uis uit uiu up- upe upf upi upp upr ups upt upu ur- ure urf uri urp urr urs urt uru use usf usi usp usr uss ust usu ute utf uti utp utr uts utt utu uue uur uus uut uuu