-al -er -ic -ol a-a a-c a-i a-t aaa aac aae aag aai aal aao aar aat aax ac- aca acc ace acg aci acl aco acr act acx aea aec aee aeg aei ael aeo aer aet aex ag- aga agc age agg agi agl ago agr agt agx ai- aia aic aie aig aii ail aio air ait aix al- ala alc ale alg ali all alo alr alt alx aoa aoc aoe aog aoi aol aoo aor aot aox ar- ara arc are arg ari arl aro arr art arx at- ata atc ate atg ati atl ato atr att atx ax- axa axe axi axl axo axr axt axx c-- caa cac cae cag cai cal cao car cat cax cca ccc cce ccg cci ccl cco ccr cct ccx ce- cea cec cee ceg cei cel ceo cer cet cex cga cgc cge cgg cgi cgl cgo cgr cgt ci- cia cic cie cig cii cil cio cir cit cix cl- cla clc cle clg cli cll clo clr clt clx co- coa coc coe cog coi col coo cor cot cox cra crc cre crg cri crl cro crr crt crx cta ctc cte ctg cti ctl cto ctr ctt ctx cxc cxi cxl cxo cxr cxt cxx eaa eac eae eag eai eal eao ear eat eax ec- eca ecc ece ecg eci ecl eco ecr ect ecx eea eec eee eeg eel eeo eer eet eex ega egc ege egg egi egl ego egr egt egx eia eic eie eig eii eil eio eir eit eix ela elc ele elg eli ell elo elr elt elx eo- eoa eoc eoe eog eoi eol eoo eor eot era erc ere erg eri erl ero err ert eta etc ete etg eti etl eto etr ett etx ex- exa exc exe exi exl exo exr ext exx gaa gac gae gag gai gal gao gar gat gca gcc gce gcg gci gcl gco gcr gct ge- gea gec gee geg gei gel geo ger get gex gga ggc ggg ggi ggo ggr ggt gia gic gie gig gii gil gio gir git gla glc gle glg gli gll glo glr glt glx goa goc goe gog goi gol goo gor got gox gra grc gre grg gri grl gro grr grt grx gta gtc gte gtg gti gtl gto gtr gtt gtx gxa gxl gxt ia- iaa iac iae iag iai ial iao iar iat ica icc ice icg ici icl ico icr ict ie- iea iec iee ieg iei iel ier iet iex iga igc ige igg igi igl igo igr igt iia iic iie iii iil iio iir iit iix il- ila ilc ile ilg ili ill ilo ilr ilt ilx io- ioa ioc ioe iog ioi iol ioo ior iot ir- ira irc ire irg iri irl iro irr irt irx ita itc ite itg iti itl ito itt itx ixc ixe ixi ixl la- laa lac lae lag lai lal lao lar lat lax lca lcc lce lcg lci lcl lco lcr lct lcx lea lec lee leg lei lel leo ler let lex lga lgc lge lgg lgi lgl lgo lgr lgt lia lic lie lig lii lil lio lir lit lix lla llc lle llg lli lll llo llr llt loa loc loe log loi lol loo lor lot lox lra lrc lrg lri lro lrr lrt lta ltc lte ltg lti ltl lto ltr ltt ltx lxc lxi lxo lxr lxx o-i oaa oac oae oag oai oal oao oar oat oax oc- oca occ ocg oci ocl oco ocr oct ocx oea oec oee oeg oei oel oeo oer oet oex oga ogc oge ogg ogi ogl ogo ogt ogx oia oic oie oii oil oio oir oit ola olc ole olg oli oll olo olt oo- ooa ooc oog ooi ool ooo oor oot oox or- ora orc ore org ori orl oro orr ort orx ot- ota otc ote otg oti otl oto otr ott ox- oxa oxc oxi oxo oxt oxx ra- raa rac rae rag rai ral rao rar rat rax rca rcc rce rcg rci rcl rco rcr rct rcx re- rea rec ree reg rei rel reo rer ret rex rga rgc rge rgg rgi rgo rgr rgt rgx ria ric rie rig rii ril rio rir rit rix rla rlc rle rlg rli rll rlo rlr rlt roa roc roe rog roi rol roo ror rot rox rra rrc rrg rri rrl rrr rrt rta rtc rte rtg rti rtl rto rtr rtt rtx rxr t-x taa tac tae tag tai tal tao tar tat tax tca tcc tce tcg tci tcl tco tcr tct tcx te- tea tec tee teg tei tel teo ter tet tex tga tgc tge tgg tgi tgl tgo tgr tgt tia tic tie tig tii til tio tir tit tix tla tlc tle tlg tli tll tlo tlr tlt tlx to- toa toc toe tog toi tol too tor tot tox tra trc tre trg tri trl tro trr trt trx tta ttc tte ttg tti ttl tto ttr ttt ttx txe txi txl txt xaa xac xag xal xar xat xci xcl xcr xcx xee xeg xel xer xet xex xge xgi xgl xia xic xie xii xio xit xix xla xlg xli xlr xlt xoa xoc xog xoi xoo xor xot xox xrc xrt xrx xtc xti xtr xtx xxi xxl xxo xxx