a-a a-i a-t aaa aad aai aap aat aax ad- ada add adi adp adt adx ai- aia aid aii aip ait aix ap- apa apd api app apt apx at- ata atd ati atp att atx ax- axa axi axp axt axx daa dad dai dap dat dax dda ddd ddi ddp ddt ddx di- dia did dii dip dit dix dpa dpd dpi dpp dpt dta dtd dti dtp dtt dtx dxd dxi dxp dxt dxx i-d ia- iaa iad iai iap iat ida idd idi idp idt idx iia iid iii iip iit iix ipa ipd ipi ipp ipt ipx ita itd iti itp itt itx ixi p-p paa pad pai pap pat pax pda pdd pdi pdp pdt pdx pia pid pii pip pit pix ppa ppd ppi ppp ppt ppx pt- pta ptd pti ptp ptt ptx pxt t-x taa tad tai tap tat tax tda tdd tdi tdp tdt tdx tia tid tii tip tit tix tpa tpd tpi tpp tpt tpx tta ttd tti ttp ttt ttx txi txt xaa xad xap xat xda xdi xdt xia xii xit xix xpa xpd xpp xpt xti xtp xtx xxi xxp xxx