a-a a-b a-i aaa aab aai aak aas aau aay ab- aba abb abi abk abs abu aby ai- aia aib aii aik ais aiu aiy aka akb aki akk aks aku as- asa asb asi ask ass asu asy au- aua aub aui auk aus ay- aya ayi ayk ays ayu b-u baa bab bai bak bas bau bay bba bbb bbi bbk bbs bbu bby bi- bia bib bii bik bis biu biy bka bkb bkk bks bsa bsb bsi bsk bss bsu bsy bua bub bui buk bus buu buy by- bya byi byk bys byu ia- iaa iab iai ias iau iba ibb ibi ibk ibs ibu iby iia iib iii iis iiu ika ikb iki ikk iks iku is- isa isb isi isk iss isu isy iu- iua iub iui ius iya iys iyy ka- kaa kab kai kak kas kau kay kba kbb kbi kbk kbs kbu kia kib kii kik kis kiu kkb kki kkk kks kku kky ksa ksb ksi ksk kss ksu kub kui kuk kus kuu kuy kya kys kyu saa sab sai sak sas sau say sba sbb sbi sbk sbs sbu sby sia sib sii sik sis siu sk- ska skb ski skk sks sku sky ss- ssa ssb ssi ssk sss ssu sua sub sui suk sus suu suy sy- sya syb syi syk sys syu ua- uaa uab uai uak uas uau uay uba ubb ubi ubk ubs ubu uby uia uib uii uis uiu uka ukb uki ukk uku usa usb usi usk uss usu uua uus uuu uyi uys uyu yaa yab yai yak yas yau yay ybi ybs yby yii yis yka yki ykk ysa ysb ysi ysk yss ysu ysy yua yui yuk yus yuu yuy yyb yys yyu yyy