a-a aaa aad aao aar aay ad- ada add ado adr ady aoa aod aoo aor ar- ara ard aro arr ary ay- aya ayd ayo ayr daa dad dao dar day dda ddd ddo ddr ddy doa dod doo dor doy dra drd dro drr dry dy- dya dyd dyo dyr dyy oaa oad oao oar oda odd odo odr oo- ooa ood ooo oor or- ora ord oro orr ory oya oyd oyo ra- raa rad rao rar ray rda rdd rdo rdr rdy roa rod roo ror roy rra rrd rrr ry- rya ryd ryo ryr ryy yaa yad yao yar yay yda ydo ydy yod yoo yor yoy yra yro yyy