-ey a-a a-b a-i a-t aaa aab aae aai aat aav aax aay ab- aba abb abe abi abt abv abx aby aea aeb aee aei aet aev aex aey ai- aia aib aie aii ait aiv aix aiy at- ata atb ate ati att atv atx av- ava avb ave avi avt avx avy ax- axa axe axi axt axv axx ay- aya aye ayi ayt ayx baa bab bae bai bat bav bax bay bba bbb bbe bbi bbt bbx bby be- bea beb bee bei bet bev bex bey bi- bia bib bie bii bit biv bix biy bta btb bte bti btt btv btx bty bva bvb bve bvi bvt bvv bxb bxi bxx by- bya bye byi byt eaa eab eae eai eat eav eax eba ebb ebe ebi ebt ebv ebx eby eea eeb eee eet eev eex eey eia eib eie eii eit eiv eix eta etb ete eti ett etv etx ety eva evb eve evi evt evv evy ex- exa exe exi ext exx exy eya eye eyt i-v ia- iaa iab iae iai iat iav iba ibb ibe ibi ibt ibv ibx iby ie- iea iee iei iet iev iex iey iia iib iie iii iit iix ita itb ite iti itt itv itx ity iva ivb ive ivi ivt ivv ivx ivy ixe ixi ixy iya iye iyt iyy t-x taa tab tae tai tat tav tax tay tba tbb tbe tbi tbt tbv te- tea teb tee tei tet tev tex tey tia tib tie tii tit tiv tix tiy tta ttb tte tti ttt ttv ttx tty tva tvb tve tvi tvt tvx tvy txe txi txt tya tye tyt v-a v-e vaa vab vae vai vat vav vax vay vba vbi vbv vea veb vee vei vet vex vey vi- via vib vie vii vit viv vix viy vta vtb vte vti vtt vtv vtx vty vva vvb vvi vvt vvv vxa vxv vye vyt xaa xat xav xbe xbx xee xet xev xex xia xie xii xit xiv xix xti xtv xtx xty xvi xvt xxi xxv xxx xxy xyy yaa yab yae yai yat yav yax yay ybe ybi yby yea yeb yee yei yet yev yex yey yie yii yit yta yte ytt ytv yva yve yvi yvy yxa yxe yxy yyb yye yyt yyy