-er -ey eee eek eer ees eey eie eii eik eir eis eiu eke eki ekr eks eku eky ere eri erk err ers eru ery es- ese esi esk esr ess esu esy eu- eue eui eur eus eye eyr eys ie- iee iei iek ier ies iey iie iii iir iis iiu ike iki ikk ikr iks iku ir- ire iri irk irr irs iru iry is- ise isi isk isr iss isu isy iu- iue iui iur ius iye iyr iys iyy ke- kee kei kek ker kes key kie kii kik kir kis kiu kke kki kkk kkr kks kku kky kri krk krr krs kru kry kse ksi ksk ksr kss ksu kue kui kuk kur kus kuu kuy kye kyr kys kyu re- ree rei rek rer res reu rey rie rii rik rir ris riy rke rkk rks rku rky rri rrk rrr rrs rru rse rsi rsk rsr rss rsu rue rui ruk rur rus ruu ruy ry- rye ryk ryr rys ryu ryy se- see sei sek ser ses seu sey sie sii sik sir sis siu sk- ske ski skk skr sks sku sky sr- sre sri srk srr srs sry ss- sse ssi ssk ssr sss ssu sue sui suk sur sus suu suy sy- sye syi syk syr sys syu uee uei uer ues uey uie uii uir uis uiu uke uki ukk ukr uku ur- ure uri urk urr urs uru ury use usi usk usr uss usu uue uur uus uuu uyi uys uyu yee yei yek yer yes yey yie yii yir yis yki ykk yre yrs yru yse ysi ysk ysr yss ysu ysy yue yui yuk yur yus yuu yuy yye yys yyu yyy