-er -up eee eef een eeo eep eer ees eet ef- efe eff efo efp efr efs eft en- ene enf enn eno enp enr ens ent enu eo- eoe eof eon eoo eop eor eos eot eou ep- epe epf epn epo epp epr eps ept epu ere erf ern ero erp err ers ert eru es- ese esf esn eso esp esr ess est esu ete etf etn eto etp etr ets ett etu eu- eue euf eun eup eur eus eut fee fef fen feo fep fer fes fet feu ffe fff ffn ffo ffp ffr ffs fft ffu fne fnf fnn fnp fnr fns fnt fnu foe fof fon foo fop for fos fot fou fpe fpn fpo fpp fpr fps fpt fpu fre frf frn fro frp frr frs frt fru fse fsf fsn fso fsp fsr fss fst fsu fte ftf ftn fto ftp ftr fts ftt ftu fue fuf fun fuo fup fur fus fut fuu ne- nee nef nen neo nep ner nes net neu nfe nff nfn nfo nfp nfr nfs nft nfu nne nnf nnn nno nnp nns nnt nnu no- noe nof non noo nop nor nos not nou npe npf npn npo npp npr nps npt npu nre nrf nrn nro nrp nrr nrs nrt nru nse nsf nsn nso nsp nsr nss nst nsu nte ntf ntn nto ntp ntr nts ntt ntu nue nun nuo nup nur nus nut nuu oee oef oen oeo oep oer oes oet of- ofe off ofn ofo ofp ofr ofs oft ofu on- one onf onn ono onp onr ons ont onu oo- oof oon ooo oop oor oos oot op- ope opf opn opo opp opr ops opt or- ore orf orn oro orp orr ors ort oru os- ose osf osn oso osp osr oss ost osu ot- ote otf otn oto otp otr ots ott otu ou- oue ouf oun ouo oup our ous out p-p pee pef pen peo pep per pes pet peu pfe pff pfn pfo pfp pfr pfs pft pfu pn- pne pnf pnn pno pnp pnr pns pnt pnu poe pof pon poo pop por pos pot pou ppe ppf ppn ppo ppp ppr pps ppt ppu pre prf prn pro prp prr prs prt pru ps- pse psf psn pso psp psr pss pst psu pt- pte ptf ptn pto ptp ptr pts ptt ptu pue puf pun pup pur pus put puu re- ree ref ren reo rep rer res ret reu rfe rff rfn rfo rfp rfr rfs rft rfu rnn rno rnp rnr rns rnt rnu roe rof ron roo rop ror ros rot rou rpe rpf rpn rpo rpp rpr rps rpt rpu rrf rrn rrp rrr rrs rrt rru rse rsf rsn rso rsp rsr rss rst rsu rte rtf rtn rto rtp rtr rts rtt rtu rue ruf run ruo rup rur rus rut ruu se- see sef sen seo sep ser ses set seu sfe sff sfn sfo sfp sfr sfs sft sfu sne snf snn sno snp snr sns snt snu soe sof son soo sop sor sos sot sou spe spf spn spo spp spr sps spt spu sr- sre srf srn sro srp srr srs srt ss- sse ssf ssn sso ssp ssr sss sst ssu ste stf stn sto stp str sts stt stu sue suf sun suo sup sur sus sut suu te- tee tef ten teo tep ter tes tet teu tfe tff tfn tfo tfp tfr tfs tft tfu tne tnf tnn tno tnp tnr tns tnt to- toe tof ton too top tor tos tot tou tpe tpf tpn tpo tpp tpr tps tpt tpu tre trf trn tro trp trr trs trt tru tse tsf tsn tso tsp tsr tss tst tsu tte ttf ttn tto ttp ttr tts ttt ttu tue tuf tun tuo tup tur tus tut tuu uee uef uen uep uer ues uet ufe uff ufn ufo ufp ufr ufs uft ufu un- une unf unn uno unp unr uns unt unu uoe uon uoo uop uor uos uot up- upe upf upn upo upp upr ups upt upu ur- ure urf urn uro urp urr urs urt uru use usf usn uso usp usr uss ust usu ute utf utn uto utp utr uts utt utu uue uun uur uus uut uuu