-er -ey -up eee eek eep eer ees eey eke ekp ekr eks eku eky ep- epe epp epr eps epu ere erk erp err ers eru ery es- ese esk esp esr ess esu esy eu- eue eup eur eus eye eyp eyr eys ke- kee kek kep ker kes key kke kkk kkp kkr kks kku kky kpe kpk kpp kpr kps kpu krk krp krr krs kru kry kse ksk ksp ksr kss ksu kue kuk kup kur kus kuu kuy kye kyp kyr kys kyu p-p pee pek pep per pes peu pey pke pkp pkr pks pku pky ppe ppk ppp ppr pps ppu pre prk prp prr prs pru pry ps- pse psk psp psr pss psu psy pue puk pup pur pus puu puy py- pye pyk pyr pys pyu re- ree rek rep rer res reu rey rke rkk rkp rks rku rky rpe rpk rpp rpr rps rpu rrk rrp rrr rrs rru rse rsk rsp rsr rss rsu rue ruk rup rur rus ruu ruy ry- rye ryk ryr rys ryu ryy se- see sek sep ser ses seu sey sk- ske skk skp skr sks sku sky spe spk spp spr sps spu spy sr- sre srk srp srr srs sry ss- sse ssk ssp ssr sss ssu sue suk sup sur sus suu suy sy- sye syk syp syr sys syu uee uep uer ues uey uke ukk ukp ukr uku up- upe upk upp upr ups upu ur- ure urk urp urr urs uru ury use usk usp usr uss usu uue uur uus uuu uys uyu yee yek yep yer yes yey ykk yps ypu yre yrp yrs yru yse ysk ysp ysr yss ysu ysy yue yuk yup yur yus yuu yuy yye yys yyu yyy