a-a aaa aad aao aap aar aax aay ad- ada add ado adp adr adx ady aoa aod aoo aop aor aox ap- apa apd apo app apr apx apy ar- ara ard aro arp arr arx ary ax- axa axo axp axr axx ay- aya ayd ayo ayp ayr ayx daa dad dao dap dar dax day dda ddd ddo ddp ddr ddx ddy doa dod doo dop dor dox doy dpa dpd dpo dpp dpr dra drd dro drp drr drx dry dxd dxo dxp dxr dxx dy- dya dyd dyo dyp dyr dyy oaa oad oao oap oar oax oda odd odo odp odr oo- ooa ood ooo oop oor oox op- opa opd opo opp opr opx opy or- ora ord oro orp orr orx ory ox- oxa oxo oxx oxy oya oyd oyo p-p paa pad pao pap par pax pay pda pdd pdo pdp pdr pdx poa pod poo pop por pox poy ppa ppd ppo ppp ppr ppx pra prd pro prp prr prx pry pxr py- pya pyd pyo pyr pyx ra- raa rad rao rap rar rax ray rda rdd rdo rdp rdr rdx rdy roa rod roo rop ror rox roy rpa rpd rpo rpp rpr rpx rra rrd rrp rrr rxp rxr ry- rya ryd ryo ryr ryy xaa xad xap xar xda xdr xoa xod xoo xop xor xox xpa xpd xpo xpp xrd xrx xry xxo xxp xxx xxy xyp xyr xyy yaa yad yao yap yar yax yay yda ydo ydy yod yoo yop yor yox yoy ypa ypd ypo yra yro yrp yxa yxy yyy