a-a a-b a-i aaa aab aad aai aar aau aay ab- aba abb abd abi abr abu aby ad- ada adb add adi adr adu ady ai- aia aib aid aii air aiu aiy ar- ara arb ard ari arr aru ary au- aua aub aud aui aur ay- aya ayd ayi ayr ayu b-u baa bab bad bai bar bau bay bba bbb bbd bbi bbr bbu bby bda bdb bdd bdi bdr bdu bdy bi- bia bib bid bii bir biu biy bra brb brd bri brr bru bry bua bub bud bui bur buu buy by- bya byd byi byr byu daa dab dad dai dar dau day dba dbb dbd dbi dbr dbu dby dda ddb ddd ddi ddr ddu ddy di- dia dib did dii dir diu diy dra drb drd dri drr dru dry dua dub dud dui dur duy dy- dya dyb dyd dyr dyu dyy i-d ia- iaa iab iad iai iar iau iba ibb ibd ibi ibr ibu iby ida idb idd idi idr idu idy iia iib iid iii iir iiu ir- ira irb ird iri irr iru iry iu- iua iub iud iui iur iya iyr iyy ra- raa rab rad rai rar rau ray rba rbb rbd rbi rbr rbu rda rdb rdd rdi rdr rdu rdy ria rib rid rii rir riy rra rrb rrd rri rrr rru rua rub rud rui rur ruu ruy ry- rya ryd ryr ryu ryy ua- uaa uab uad uai uar uau uay uba ubb ubi ubr ubu uby uda udb udd udi udr udu uia uib uid uii uir uiu ur- ura urb urd uri urr uru ury uua uur uuu uyi uyu yaa yab yad yai yar yau yay ybi ybr yby yda ydy yid yii yir yra yru yua yud yui yur yuu yuy yyb yyu yyy