iii iio iir iis iiu iki ikk iko ikr iks iku io- ioi ioo ior ios iou ir- iri irk iro irr irs iru iry is- isi isk iso isr iss isu isy iu- iui iur ius iyo iyr iys iyy kii kik kio kir kis kiu kki kkk kkr kks kku kky koi kok koo kor kos kou koy kri krk kro krr krs kru kry ksi ksk kso ksr kss ksu kui kuk kur kus kuu kuy kyo kyr kys kyu o-i oii oik oio oir ois oiu oki okk oko okr oks oku oo- ooi ook ooo oor oos or- ori ork oro orr ors oru ory os- osi osk oso osr oss osu ou- oui ouk ouo our ous oyi oyo oys rii rik rio rir ris riy rkk rko rks rku rky roi rok roo ror ros rou roy rri rrk rrr rrs rru rsi rsk rso rsr rss rsu rui ruk ruo rur rus ruu ruy ry- ryk ryo ryr rys ryu ryy sii sik sio sir sis siu sk- ski skk sko skr sks sku sky soi sok soo sor sos sou soy sr- sri srk sro srr srs sry ss- ssi ssk sso ssr sss ssu sui suk suo sur sus suu suy sy- syi syk syr sys syu uii uio uir uis uiu uki ukk ukr uku uok uoo uor uos ur- uri urk uro urr urs uru ury usi usk uso usr uss usu uur uus uuu uyi uyo uys uyu yii yio yir yis yki ykk yoi yok yoo yor yos you yoy yro yrs yru ysi ysk yso ysr yss ysu ysy yui yuk yuo yur yus yuu yuy yys yyu yyy