-er -up eee eef een eeo eep eer eet ef- efe eff efo efp efr eft en- ene enf enn eno enp enr ent enu eo- eoe eof eon eoo eop eor eot eou ep- epe epf epn epo epp epr ept epu ere erf ern ero erp err ert eru ete etf etn eto etp etr ett etu eu- eue euf eun eup eur eut fee fef fen feo fep fer fet feu ffe fff ffn ffo ffp ffr fft ffu fne fnf fnn fnp fnr fnt fnu foe fof fon foo fop for fot fou fpe fpn fpo fpp fpr fpt fpu fre frf frn fro frp frr frt fru fte ftf ftn fto ftp ftr ftt ftu fue fuf fun fuo fup fur fut fuu ne- nee nef nen neo nep ner net neu nfe nff nfn nfo nfp nfr nft nfu nne nnf nnn nno nnp nnt nnu no- noe nof non noo nop nor not nou npe npf npn npo npp npr npt npu nre nrf nrn nro nrp nrr nrt nru nte ntf ntn nto ntp ntr ntt ntu nue nun nuo nup nur nut nuu oee oef oen oeo oep oer oet of- ofe off ofn ofo ofp ofr oft ofu on- one onf onn ono onp onr ont onu oo- oof oon ooo oop oor oot op- ope opf opn opo opp opr opt or- ore orf orn oro orp orr ort oru ot- ote otf otn oto otp otr ott otu ou- oue ouf oun ouo oup our out p-p pee pef pen peo pep per pet peu pfe pff pfn pfo pfp pfr pft pfu pn- pne pnf pnn pno pnp pnr pnt pnu poe pof pon poo pop por pot pou ppe ppf ppn ppo ppp ppr ppt ppu pre prf prn pro prp prr prt pru pt- pte ptf ptn pto ptp ptr ptt ptu pue puf pun pup pur put puu re- ree ref ren reo rep rer ret reu rfe rff rfn rfo rfp rfr rft rfu rnn rno rnp rnr rnt rnu roe rof ron roo rop ror rot rou rpe rpf rpn rpo rpp rpr rpt rpu rrf rrn rrp rrr rrt rru rte rtf rtn rto rtp rtr rtt rtu rue ruf run ruo rup rur rut ruu te- tee tef ten teo tep ter tet teu tfe tff tfn tfo tfp tfr tft tfu tne tnf tnn tno tnp tnr tnt to- toe tof ton too top tor tot tou tpe tpf tpn tpo tpp tpr tpt tpu tre trf trn tro trp trr trt tru tte ttf ttn tto ttp ttr ttt ttu tue tuf tun tuo tup tur tut tuu uee uef uen uep uer uet ufe uff ufn ufo ufp ufr uft ufu un- une unf unn uno unp unr unt unu uoe uon uoo uop uor uot up- upe upf upn upo upp upr upt upu ur- ure urf urn uro urp urr urt uru ute utf utn uto utp utr utt utu uue uun uur uut uuu