-er -up eee een eep eer ees eet eie eii ein eip eir eis eit eiu en- ene eni enn enp enr ens ent enu ep- epe epi epn epp epq epr eps ept epu eqe eqn eqp eqq eqs eqt equ ere eri ern erp erq err ers ert eru es- ese esi esn esp esq esr ess est esu ete eti etn etp etr ets ett etu eu- eue eui eun eup eur eus eut ie- iee iei ien iep ier ies iet iie iii iin iip iir iis iit iiu in- ine ini inn inp inq inr ins int inu ipe ipi ipn ipp ipr ips ipt ipu iqe iqs iqt iqu ir- ire iri irn irp irq irr irs irt iru is- ise isi isn isp isq isr iss ist isu ite iti itn itp itq its itt itu iu- iue iui iup iur ius iut n-i ne- nee nei nen nep ner nes net neu nie nii nin nip niq nir nis nit niu nne nni nnn nnp nns nnt nnu npe npi npn npp npr nps npt npu nqs nqt nre nri nrn nrp nrr nrs nrt nru nse nsi nsn nsp nsr nss nst nsu nte nti ntn ntp ntq ntr nts ntt ntu nue nui nun nup nuq nur nus nut nuu p-p pee pei pen pep per pes pet peu pie pii pin pip piq pir pis pit piu pn- pne pni pnn pnp pnr pns pnt pnu ppe ppi ppn ppp ppq ppr pps ppt ppu pqi pqq pqr pqs pre pri prn prp prq prr prs prt pru ps- pse psi psn psp psr pss pst psu pt- pte pti ptn ptp ptq ptr pts ptt ptu pue pui pun pup pur pus put puu qee qen qep qet qie qin qip qir qis qit qiu qne qni qns qpp qpr qps qqq qqu qre qri qrp qrs qrt qru qsi qsp qsr qst qti qtq qtr qts qu- que qui qur qus qut re- ree rei ren rep req rer res ret reu rie rii rin rip riq rir ris rit rni rnn rnp rnr rns rnt rnu rpe rpi rpn rpp rpr rps rpt rpu rqn rqs rri rrn rrp rrq rrr rrs rrt rru rse rsi rsn rsp rsq rsr rss rst rsu rte rti rtn rtp rtq rtr rts rtt rtu rue rui run rup rur rus rut ruu se- see sei sen sep seq ser ses set seu sie sii sin sip siq sir sis sit siu sne sni snn snp snr sns snt snu spe spi spn spp spq spr sps spt spu sqi sqn sqq sqr sqs sr- sre sri srn srp srq srr srs srt ss- sse ssi ssn ssp ssq ssr sss sst ssu ste sti stn stp stq str sts stt stu sue sui sun sup suq sur sus sut suu te- tee tei ten tep teq ter tes tet teu tie tii tin tip tir tis tit tiu tne tni tnn tnp tnq tnr tns tnt tpe tpi tpn tpp tpq tpr tps tpt tpu tre tri trn trp trq trr trs trt tru tse tsi tsn tsp tsq tsr tss tst tsu tte tti ttn ttp ttr tts ttt ttu tue tui tun tup tur tus tut tuu uee uei uen uep uer ues uet uie uii uin uip uiq uir uis uit uiu un- une uni unn unp unq unr uns unt unu up- upe upi upn upp upr ups upt upu ur- ure uri urn urp urr urs urt uru use usi usn usp usr uss ust usu ute uti utn utp utr uts utt utu uue uun uur uus uut uuu