a-a a-z aaa aad aao aar aay aaz ad- ada add ado adr ady adz aoa aod aoo aor ar- ara ard aro arr ary arz ay- aya ayd ayo ayr ayz az- aza azd azo azy azz daa dad dao dar day daz dda ddd ddo ddr ddy ddz doa dod doo dor doy doz dra drd dro drr dry drz dy- dya dyd dyo dyr dyy dza dzd dzo dzr oaa oad oao oar oda odd odo odr oo- ooa ood ooo oor or- ora ord oro orr ory orz oya oyd oyo oza ozo ozz ra- raa rad rao rar ray raz rda rdd rdo rdr rdy roa rod roo ror roy roz rra rrd rrr ry- rya ryd ryo ryr ryy ryz rza rzo rzy yaa yad yao yar yay yaz yda ydo ydy yod yoo yor yoy yra yro yyy yyz yzr yzy zaa zad zao zar zay zaz zo- zoa zod zoo zor zro zzr zzy zzz