-er -up eee eek een eeo eep eer ees eie eii eik ein eio eip eir eis eiu eke eki eko ekp ekr eks eku en- ene eni enk enn eno enp enr ens enu eo- eoe eoi eok eon eoo eop eor eos eou ep- epe epi epn epo epp epr eps epu ere eri erk ern ero erp err ers eru es- ese esi esk esn eso esp esr ess esu eu- eue eui eun eup eur eus ie- iee iei iek ien iep ier ies iie iii iin iio iip iir iis iiu ike iki ikk iko ikr iks iku in- ine ini ink inn ino inp inr ins inu io- ioe ioi ion ioo iop ior ios iou ipe ipi ipn ipo ipp ipr ips ipu ir- ire iri irk irn iro irp irr irs iru is- ise isi isk isn iso isp isr iss isu iu- iue iui iup iur ius ke- kee kei kek ken keo kep ker kes kie kii kik kin kio kip kir kis kiu kke kki kkk kkn kkp kkr kks kku kn- kne kni knk knn kno knp knr knu koe koi kok kon koo kop kor kos kou kpe kpi kpk kpn kpo kpp kpr kps kpu kri krk krn kro krp krr krs kru kse ksi ksk ksn kso ksp ksr kss ksu kue kui kuk kun kup kur kus kuu n-i ne- nee nei nek nen neo nep ner nes neu nie nii nik nin nio nip nir nis niu nke nki nkk nkn nko nkp nkr nks nku nne nni nnk nnn nno nnp nns nnu no- noe noi nok non noo nop nor nos nou npe npi npn npo npp npr nps npu nre nri nrk nrn nro nrp nrr nrs nru nse nsi nsk nsn nso nsp nsr nss nsu nue nui nuk nun nuo nup nur nus nuu o-i oee oei oen oeo oep oer oes oie oii oik oin oio oip oir ois oiu oke oki okk oko okp okr oks oku on- one oni onk onn ono onp onr ons onu oo- ooi ook oon ooo oop oor oos op- ope opi opk opn opo opp opr ops or- ore ori ork orn oro orp orr ors oru os- ose osi osk osn oso osp osr oss osu ou- oue oui ouk oun ouo oup our ous p-p pee pei pek pen peo pep per pes peu pie pii pik pin pio pip pir pis piu pke pki pkn pko pkp pkr pks pku pn- pne pni pnk pnn pno pnp pnr pns pnu poe poi pok pon poo pop por pos pou ppe ppi ppk ppn ppo ppp ppr pps ppu pre pri prk prn pro prp prr prs pru ps- pse psi psk psn pso psp psr pss psu pue pui puk pun pup pur pus puu re- ree rei rek ren reo rep rer res reu rie rii rik rin rio rip rir ris rke rkk rko rkp rks rku rni rnn rno rnp rnr rns rnu roe roi rok ron roo rop ror ros rou rpe rpi rpk rpn rpo rpp rpr rps rpu rri rrk rrn rrp rrr rrs rru rse rsi rsk rsn rso rsp rsr rss rsu rue rui ruk run ruo rup rur rus ruu se- see sei sek sen seo sep ser ses seu sie sii sik sin sio sip sir sis siu sk- ske ski skk sko skp skr sks sku sne sni snk snn sno snp snr sns snu soe soi sok son soo sop sor sos sou spe spi spk spn spo spp spr sps spu sr- sre sri srk srn sro srp srr srs ss- sse ssi ssk ssn sso ssp ssr sss ssu sue sui suk sun suo sup sur sus suu uee uei uen uep uer ues uie uii uin uio uip uir uis uiu uke uki ukk ukn ukp ukr uku un- une uni unk unn uno unp unr uns unu uoe uok uon uoo uop uor uos up- upe upi upk upn upo upp upr ups upu ur- ure uri urk urn uro urp urr urs uru use usi usk usn uso usp usr uss usu uue uun uur uus uuu