-al a-a a-c a-t aaa aac aae aal aas aat aau aax ac- aca acc ace acl acs act acu acx aea aec aee ael aes aet aeu aex al- ala alc ale all als alt alu alx as- asa asc ase asl ass ast asu asx at- ata atc ate atl ats att atu atx au- aua auc aue aul aus aut aux ax- axa axe axl axs axt axx c-- caa cac cae cal cas cat cau cax cca ccc cce ccl ccs cct ccu ccx ce- cea cec cee cel ces cet ceu cex cl- cla clc cle cll cls clt clu clx csa csc cse csl css cst csu csx cta ctc cte ctl cts ctt ctu ctx cua cuc cue cul cus cut cuu cxc cxl cxs cxt cxx eaa eac eae eal eas eat eau eax ec- eca ecc ece ecl ecs ect ecu ecx eea eec eee eel ees eet eex ela elc ele ell els elt elu elx es- esa esc ese esl ess est esu esx eta etc ete etl ets ett etu etx eu- eua euc eue eul eus eut eux ex- exa exc exe exl exs ext exu exx la- laa lac lae lal las lat lau lax lca lcc lce lcl lcs lct lcu lcx lea lec lee lel les let leu lex lla llc lle lll lls llt llu lsa lsc lse lsl lss lst lsu lta ltc lte ltl lts ltt ltu ltx lua luc lue lul lus lut luu lux lxc lxx saa sac sae sal sas sat sau sax sca scc sce scl scs sct scu scx se- sea sec see sel ses set seu sex sla slc sle sll sls slt slu slx ss- ssa ssc sse ssl sss sst ssu ssx sta stc ste stl sts stt stu stx sua suc sue sul sus sut suu sux sxc sxl sxs sxt sxu t-x taa tac tae tal tas tat tau tax tca tcc tce tcl tcs tct tcu tcx te- tea tec tee tel tes tet teu tex tla tlc tle tll tls tlt tlu tlx tsa tsc tse tsl tss tst tsu tsx tta ttc tte ttl tts ttt ttu ttx tua tuc tue tul tus tut tuu tux txe txl txs txt txu ua- uaa uac uae ual uas uat uau uca ucc uce ucl ucs uct ucu uea uec uee uel ues uet ula ulc ule ull uls ult ulu usa usc use usl uss ust usu usx uta utc ute utl uts utt utu utx uua uuc uue uus uut uuu uxc uxt uxu xaa xac xal xas xat xau xcl xcx xee xel xes xet xeu xex xla xls xlt xsa xsc xsl xss xst xtc xts xtx xue xul xus xxl xxx