a-a aaa aad aap aar aas aax aay ad- ada add adp adr ads adx ady ap- apa apd app apr aps apx apy ar- ara ard arp arr ars arx ary as- asa asd asp asr ass asx asy ax- axa axp axr axs axx ay- aya ayd ayp ayr ays ayx daa dad dap dar das dax day dda ddd ddp ddr dds ddx ddy dpa dpd dpp dpr dps dra drd drp drr drs drx dry dsa dsd dsp dsr dss dsx dsy dxd dxp dxr dxs dxx dy- dya dyd dyp dyr dys dyy p-p paa pad pap par pas pax pay pda pdd pdp pdr pds pdx ppa ppd ppp ppr pps ppx pra prd prp prr prs prx pry ps- psa psd psp psr pss psx psy pxr pxs py- pya pyd pyr pys pyx ra- raa rad rap rar ras rax ray rda rdd rdp rdr rds rdx rdy rpa rpd rpp rpr rps rpx rra rrd rrp rrr rrs rsa rsd rsp rsr rss rsx rxp rxr rxs ry- rya ryd ryr rys ryy saa sad sap sar sas sax say sda sdd sdp sdr sds sdy spa spd spp spr sps spx spy sr- sra srd srp srr srs srx sry ss- ssa ssd ssp ssr sss ssx sxs sy- sya syd syp syr sys syx xaa xad xap xar xas xda xdr xds xpa xpd xpp xps xrd xrx xry xsa xsp xss xxp xxx xxy xyp xyr xyy yaa yad yap yar yas yax yay yda yds ydy ypa ypd yps yra yrp yrs ysa ysp ysr yss ysy yxa yxy yys yyy