-er -up eee eek een eep eer ees eet eie eii eik ein eip eir eis eit eiu eke eki ekp ekr eks ekt eku en- ene eni enk enn enp enr ens ent enu ep- epe epi epn epp epr eps ept epu ere eri erk ern erp err ers ert eru es- ese esi esk esn esp esr ess est esu ete eti etk etn etp etr ets ett etu eu- eue eui eun eup eur eus eut ie- iee iei iek ien iep ier ies iet iie iii iin iip iir iis iit iiu ike iki ikk ikr iks ikt iku in- ine ini ink inn inp inr ins int inu ipe ipi ipn ipp ipr ips ipt ipu ir- ire iri irk irn irp irr irs irt iru is- ise isi isk isn isp isr iss ist isu ite iti itk itn itp its itt itu iu- iue iui iup iur ius iut k-t ke- kee kei kek ken kep ker kes ket kie kii kik kin kip kir kis kit kiu kke kki kkk kkn kkp kkr kks kkt kku kn- kne kni knk knn knp knr knt knu kpe kpi kpk kpn kpp kpr kps kpt kpu kri krk krn krp krr krs krt kru kse ksi ksk ksn ksp ksr kss kst ksu kte ktk ktn ktp ktr kts ktt ktu kue kui kuk kun kup kur kus kut kuu n-i ne- nee nei nek nen nep ner nes net neu nie nii nik nin nip nir nis nit niu nke nki nkk nkn nkp nkr nks nkt nku nne nni nnk nnn nnp nns nnt nnu npe npi npn npp npr nps npt npu nre nri nrk nrn nrp nrr nrs nrt nru nse nsi nsk nsn nsp nsr nss nst nsu nte nti ntk ntn ntp ntr nts ntt ntu nue nui nuk nun nup nur nus nut nuu p-p pee pei pek pen pep per pes pet peu pie pii pik pin pip pir pis pit piu pke pki pkn pkp pkr pks pkt pku pn- pne pni pnk pnn pnp pnr pns pnt pnu ppe ppi ppk ppn ppp ppr pps ppt ppu pre pri prk prn prp prr prs prt pru ps- pse psi psk psn psp psr pss pst psu pt- pte pti ptk ptn ptp ptr pts ptt ptu pue pui puk pun pup pur pus put puu re- ree rei rek ren rep rer res ret reu rie rii rik rin rip rir ris rit rke rkk rkp rks rkt rku rni rnn rnp rnr rns rnt rnu rpe rpi rpk rpn rpp rpr rps rpt rpu rri rrk rrn rrp rrr rrs rrt rru rse rsi rsk rsn rsp rsr rss rst rsu rte rti rtk rtn rtp rtr rts rtt rtu rue rui ruk run rup rur rus rut ruu se- see sei sek sen sep ser ses set seu sie sii sik sin sip sir sis sit siu sk- ske ski skk skp skr sks skt sku sne sni snk snn snp snr sns snt snu spe spi spk spn spp spr sps spt spu sr- sre sri srk srn srp srr srs srt ss- sse ssi ssk ssn ssp ssr sss sst ssu ste sti stk stn stp str sts stt stu sue sui suk sun sup sur sus sut suu te- tee tei tek ten tep ter tes tet teu tie tii tik tin tip tir tis tit tiu tke tkk tkp tkr tks tkt tne tni tnk tnn tnp tnr tns tnt tpe tpi tpk tpn tpp tpr tps tpt tpu tre tri trk trn trp trr trs trt tru tse tsi tsk tsn tsp tsr tss tst tsu tte tti ttk ttn ttp ttr tts ttt ttu tue tui tuk tun tup tur tus tut tuu uee uei uen uep uer ues uet uie uii uin uip uir uis uit uiu uke uki ukk ukn ukp ukr uku un- une uni unk unn unp unr uns unt unu up- upe upi upk upn upp upr ups upt upu ur- ure uri urk urn urp urr urs urt uru use usi usk usn usp usr uss ust usu ute uti utk utn utp utr uts utt utu uue uun uur uus uut uuu