-al -ic a-a a-c a-i a-t aaa aac aae aag aai aal aap aat aax ac- aca acc ace acg aci acl acp act acx aea aec aee aeg aei ael aep aet aex ag- aga agc age agg agi agl agp agt agx ai- aia aic aie aig aii ail aip ait aix al- ala alc ale alg ali all alp alt alx ap- apa apc ape apg api apl app apt apx at- ata atc ate atg ati atl atp att atx ax- axa axe axi axl axp axt axx c-- caa cac cae cag cai cal cap cat cax cca ccc cce ccg cci ccl ccp cct ccx ce- cea cec cee ceg cei cel cep cet cex cga cgc cge cgg cgi cgl cgp cgt ci- cia cic cie cig cii cil cip cit cix cl- cla clc cle clg cli cll clp clt clx cpa cpc cpe cpg cpi cpl cpp cpt cpx cta ctc cte ctg cti ctl ctp ctt ctx cxc cxi cxl cxp cxt cxx eaa eac eae eag eai eal eap eat eax ec- eca ecc ece ecg eci ecl ect ecx eea eec eee eeg eel eep eet eex ega egc ege egg egi egl egp egt egx eia eic eie eig eii eil eip eit eix ela elc ele elg eli ell elp elt elx ep- epa epc epe epg epi epl epp ept epx eta etc ete etg eti etl etp ett etx ex- exa exc exe exi exl exp ext exx g-p gaa gac gae gag gai gal gap gat gca gcc gce gcg gci gcl gcp gct ge- gea gec gee geg gei gel gep get gex gga ggc ggg ggi ggp ggt gia gic gie gig gii gil gip git gla glc gle glg gli gll glp glt glx gpa gpc gpe gpg gpi gpl gpp gpt gpx gta gtc gte gtg gti gtl gtp gtt gtx gxa gxl gxp gxt ia- iaa iac iae iag iai ial iap iat ica icc ice icg ici icl icp ict ie- iea iec iee ieg iei iel iep iet iex iga igc ige igg igi igl igp igt iia iic iie iii iil iip iit iix il- ila ilc ile ilg ili ill ilp ilt ilx ipa ipc ipe ipg ipi ipl ipp ipt ipx ita itc ite itg iti itl itp itt itx ixc ixe ixi ixl l-p la- laa lac lae lag lai lal lap lat lax lca lcc lce lcg lci lcl lcp lct lcx lea lec lee leg lei lel lep let lex lga lgc lge lgg lgi lgl lgp lgt lia lic lie lig lii lil lip lit lix lla llc lle llg lli lll llp llt lpa lpc lpe lpg lpi lpl lpp lpt lpx lta ltc lte ltg lti ltl ltp ltt ltx lxc lxi lxx p-p paa pac pae pag pai pal pap pat pax pca pcc pce pcg pci pcl pcp pct pcx pea pec pee peg pei pel pep pet pex pga pgc pge pgg pgi pgl pgp pgt pia pic pie pig pii pil pip pit pix pla plc ple plg pli pll plp plt plx ppa ppc ppe ppg ppi ppl ppp ppt ppx pt- pta ptc pte ptg pti ptl ptp ptt ptx pxc pxe pxg pxl pxt t-x taa tac tae tag tai tal tap tat tax tca tcc tce tcg tci tcl tcp tct tcx te- tea tec tee teg tei tel tep tet tex tga tgc tge tgg tgi tgl tgp tgt tia tic tie tig tii til tip tit tix tla tlc tle tlg tli tll tlp tlt tlx tpa tpc tpe tpg tpi tpl tpp tpt tpx tta ttc tte ttg tti ttl ttp ttt ttx txe txi txl txt xaa xac xag xal xap xat xci xcl xcp xcx xee xeg xel xep xet xex xge xgi xgl xgp xia xic xie xii xit xix xla xlg xli xlt xpa xpc xpe xpg xpl xpp xpt xtc xti xtp xtx xxi xxl xxp xxx