a-a aaa aad aap aar aay ad- ada add adp adr ady ap- apa apd app apr apy ar- ara ard arp arr ary ay- aya ayd ayp ayr daa dad dap dar day dda ddd ddp ddr ddy dpa dpd dpp dpr dra drd drp drr dry dy- dya dyd dyp dyr dyy p-p paa pad pap par pay pda pdd pdp pdr ppa ppd ppp ppr pra prd prp prr pry py- pya pyd pyr ra- raa rad rap rar ray rda rdd rdp rdr rdy rpa rpd rpp rpr rra rrd rrp rrr ry- rya ryd ryr ryy yaa yad yap yar yay yda ydy ypa ypd yra yrp yyy