-er -up eee eek een eep eer ees eie eii eik ein eip eir eis eiu eke eki ekp ekr eks eku en- ene eni enk enn enp enr ens enu ep- epe epi epn epp epr eps epu ere eri erk ern erp err ers eru es- ese esi esk esn esp esr ess esu eu- eue eui eun eup eur eus ie- iee iei iek ien iep ier ies iie iii iin iip iir iis iiu ike iki ikk ikr iks iku in- ine ini ink inn inp inr ins inu ipe ipi ipn ipp ipr ips ipu ir- ire iri irk irn irp irr irs iru is- ise isi isk isn isp isr iss isu iu- iue iui iup iur ius ke- kee kei kek ken kep ker kes kie kii kik kin kip kir kis kiu kke kki kkk kkn kkp kkr kks kku kn- kne kni knk knn knp knr knu kpe kpi kpk kpn kpp kpr kps kpu kri krk krn krp krr krs kru kse ksi ksk ksn ksp ksr kss ksu kue kui kuk kun kup kur kus kuu n-i ne- nee nei nek nen nep ner nes neu nie nii nik nin nip nir nis niu nke nki nkk nkn nkp nkr nks nku nne nni nnk nnn nnp nns nnu npe npi npn npp npr nps npu nre nri nrk nrn nrp nrr nrs nru nse nsi nsk nsn nsp nsr nss nsu nue nui nuk nun nup nur nus nuu p-p pee pei pek pen pep per pes peu pie pii pik pin pip pir pis piu pke pki pkn pkp pkr pks pku pn- pne pni pnk pnn pnp pnr pns pnu ppe ppi ppk ppn ppp ppr pps ppu pre pri prk prn prp prr prs pru ps- pse psi psk psn psp psr pss psu pue pui puk pun pup pur pus puu re- ree rei rek ren rep rer res reu rie rii rik rin rip rir ris rke rkk rkp rks rku rni rnn rnp rnr rns rnu rpe rpi rpk rpn rpp rpr rps rpu rri rrk rrn rrp rrr rrs rru rse rsi rsk rsn rsp rsr rss rsu rue rui ruk run rup rur rus ruu se- see sei sek sen sep ser ses seu sie sii sik sin sip sir sis siu sk- ske ski skk skp skr sks sku sne sni snk snn snp snr sns snu spe spi spk spn spp spr sps spu sr- sre sri srk srn srp srr srs ss- sse ssi ssk ssn ssp ssr sss ssu sue sui suk sun sup sur sus suu uee uei uen uep uer ues uie uii uin uip uir uis uiu uke uki ukk ukn ukp ukr uku un- une uni unk unn unp unr uns unu up- upe upi upk upn upp upr ups upu ur- ure uri urk urn urp urr urs uru use usi usk usn usp usr uss usu uue uun uur uus uuu