a-a a-i a-t aaa aad aai aas aat aax aay ad- ada add adi ads adt adx ady ai- aia aid aii ais ait aix aiy as- asa asd asi ass ast asx asy at- ata atd ati ats att atx ax- axa axi axs axt axx ay- aya ayd ayi ays ayt ayx daa dad dai das dat dax day dda ddd ddi dds ddt ddx ddy di- dia did dii dis dit dix diy dsa dsd dsi dss dst dsx dsy dta dtd dti dts dtt dtx dty dxd dxi dxs dxt dxx dy- dya dyd dys dyy i-d ia- iaa iad iai ias iat ida idd idi ids idt idx idy iia iid iii iis iit iix is- isa isd isi iss ist isy ita itd iti its itt itx ity ixi ixy iya iys iyt iyy saa sad sai sas sat sax say sda sdd sdi sds sdt sdy sia sid sii sis sit six ss- ssa ssd ssi sss sst ssx sta std sti sts stt stx sty sxi sxs sxt sy- sya syd syi sys syt syx t-x taa tad tai tas tat tax tay tda tdd tdi tds tdt tdx tdy tia tid tii tis tit tix tiy tsa tsd tsi tss tst tsx tsy tta ttd tti tts ttt ttx tty txi txs txt tya tyd tys tyt xaa xad xas xat xda xdi xds xdt xia xii xis xit xix xsa xsi xss xst xti xts xtx xty xxi xxx xxy xyy yaa yad yai yas yat yax yay yda yds ydt ydy yid yii yis yit ysa ysi yss yst ysy yta ytd yts ytt yxa yxy yys yyt yyy