a-a a-i aaa aad aai aas aax aay ad- ada add adi ads adx ady ai- aia aid aii ais aix aiy as- asa asd asi ass asx asy ax- axa axi axs axx ay- aya ayd ayi ays ayx daa dad dai das dax day dda ddd ddi dds ddx ddy di- dia did dii dis dix diy dsa dsd dsi dss dsx dsy dxd dxi dxs dxx dy- dya dyd dys dyy i-d ia- iaa iad iai ias ida idd idi ids idx idy iia iid iii iis iix is- isa isd isi iss isy ixi ixy iya iys iyy saa sad sai sas sax say sda sdd sdi sds sdy sia sid sii sis six ss- ssa ssd ssi sss ssx sxi sxs sy- sya syd syi sys syx xaa xad xas xda xdi xds xia xii xis xix xsa xsi xss xxi xxx xxy xyy yaa yad yai yas yax yay yda yds ydy yid yii yis ysa ysi yss ysy yxa yxy yys yyy