-ey a-a a-c a-t aaa aac aae aas aat aau aax aay ac- aca acc ace acs act acu acx acy aea aec aee aes aet aeu aex aey as- asa asc ase ass ast asu asx asy at- ata atc ate ats att atu atx au- aua auc aue aus aut aux ax- axa axe axs axt axx ay- aya ayc aye ays ayt ayu ayx c-- caa cac cae cas cat cau cax cay cca ccc cce ccs cct ccu ccx ce- cea cec cee ces cet ceu cex cey csa csc cse css cst csu csx csy cta ctc cte cts ctt ctu ctx cty cua cuc cue cus cut cuu cuy cxc cxs cxt cxx cya cyc cye cys cyt eaa eac eae eas eat eau eax ec- eca ecc ece ecs ect ecu ecx eea eec eee ees eet eex eey es- esa esc ese ess est esu esx esy eta etc ete ets ett etu etx ety eu- eua euc eue eus eut eux ex- exa exc exe exs ext exu exx exy eya eyc eye eys eyt saa sac sae sas sat sau sax say sca scc sce scs sct scu scx se- sea sec see ses set seu sex sey ss- ssa ssc sse sss sst ssu ssx sta stc ste sts stt stu stx sty sua suc sue sus sut suu sux suy sxc sxs sxt sxu sy- sya syc sye sys syt syu syx t-x taa tac tae tas tat tau tax tay tca tcc tce tcs tct tcu tcx te- tea tec tee tes tet teu tex tey tsa tsc tse tss tst tsu tsx tsy tta ttc tte tts ttt ttu ttx tty tua tuc tue tus tut tuu tux tuy txe txs txt txu tya tyc tye tys tyt ua- uaa uac uae uas uat uau uay uca ucc uce ucs uct ucu uea uec uee ues uet uey usa usc use uss ust usu usx uta utc ute uts utt utu utx uty uua uuc uue uus uut uuu uxc uxt uxu uyc uys uyu xaa xac xas xat xau xcx xee xes xet xeu xex xsa xsc xss xst xtc xts xtx xty xue xus xxx xxy xyy yaa yac yae yas yat yau yax yay yca ycc yce ycs ycu ycy yea yec yee yes yet yex yey ysa ysc yse yss yst ysu ysy yta ytc yte yts ytt ytu yua yue yus yut yuu yux yuy yxa yxe yxy yyc yye yys yyt yyu yyy