-al -er a-a a-c a-t aaa aac aae aal aar aas aat aau aax ac- aca acc ace acl acr acs act acu acx aea aec aee ael aer aes aet aeu aex al- ala alc ale all alr als alt alu alx ar- ara arc are arl arr ars art aru arx as- asa asc ase asl asr ass ast asu asx at- ata atc ate atl atr ats att atu atx au- aua auc aue aul aur aus aut aux ax- axa axe axl axr axs axt axx c-- caa cac cae cal car cas cat cau cax cca ccc cce ccl ccr ccs cct ccu ccx ce- cea cec cee cel cer ces cet ceu cex cl- cla clc cle cll clr cls clt clu clx cra crc cre crl crr crs crt cru crx csa csc cse csl csr css cst csu csx cta ctc cte ctl ctr cts ctt ctu ctx cua cuc cue cul cur cus cut cuu cxc cxl cxr cxs cxt cxx eaa eac eae eal ear eas eat eau eax ec- eca ecc ece ecl ecr ecs ect ecu ecx eea eec eee eel eer ees eet eex ela elc ele ell elr els elt elu elx era erc ere erl err ers ert eru es- esa esc ese esl esr ess est esu esx eta etc ete etl etr ets ett etu etx eu- eua euc eue eul eur eus eut eux ex- exa exc exe exl exr exs ext exu exx la- laa lac lae lal lar las lat lau lax lca lcc lce lcl lcr lcs lct lcu lcx lea lec lee lel ler les let leu lex lla llc lle lll llr lls llt llu lra lrc lrr lrs lrt lru lsa lsc lse lsl lsr lss lst lsu lta ltc lte ltl ltr lts ltt ltu ltx lua luc lue lul lur lus lut luu lux lxc lxr lxx ra- raa rac rae ral rar ras rat rau rax rca rcc rce rcl rcr rcs rct rcu rcx re- rea rec ree rel rer res ret reu rex rla rlc rle rll rlr rls rlt rlu rra rrc rrl rrr rrs rrt rru rsa rsc rse rsl rsr rss rst rsu rsx rta rtc rte rtl rtr rts rtt rtu rtx rua ruc rue rur rus rut ruu rux rxr rxs saa sac sae sal sar sas sat sau sax sca scc sce scl scr scs sct scu scx se- sea sec see sel ser ses set seu sex sla slc sle sll slr sls slt slu slx sr- sra src sre srl srr srs srt srx ss- ssa ssc sse ssl ssr sss sst ssu ssx sta stc ste stl str sts stt stu stx sua suc sue sul sur sus sut suu sux sxc sxl sxs sxt sxu t-x taa tac tae tal tar tas tat tau tax tca tcc tce tcl tcr tcs tct tcu tcx te- tea tec tee tel ter tes tet teu tex tla tlc tle tll tlr tls tlt tlu tlx tra trc tre trl trr trs trt tru trx tsa tsc tse tsl tsr tss tst tsu tsx tta ttc tte ttl ttr tts ttt ttu ttx tua tuc tue tul tur tus tut tuu tux txe txl txs txt txu ua- uaa uac uae ual uar uas uat uau uca ucc uce ucl ucr ucs uct ucu uea uec uee uel uer ues uet ula ulc ule ull ulr uls ult ulu ur- ura urc ure url urr urs urt uru urx usa usc use usl usr uss ust usu usx uta utc ute utl utr uts utt utu utx uua uuc uue uur uus uut uuu uxc uxr uxt uxu xaa xac xal xar xas xat xau xcl xcr xcx xee xel xer xes xet xeu xex xla xlr xls xlt xrc xrt xrx xsa xsc xsl xss xst xtc xtr xts xtx xue xul xus xxl xxx