-al -er -ic a-a a-c a-i a-t aaa aac aad aae aag aai aal aar aas aat ac- aca acc acd ace acg aci acl acr acs act ad- ada adc add ade adg adi adl adr ads adt aea aec aed aee aeg aei ael aer aes aet ag- aga agc agd age agg agi agl agr ags agt ai- aia aic aid aie aig aii ail air ais ait al- ala alc ald ale alg ali all alr als alt ar- ara arc ard are arg ari arl arr ars art as- asa asc asd ase asg asi asl asr ass ast at- ata atc atd ate atg ati atl atr ats att c-- caa cac cad cae cag cai cal car cas cat cca ccc ccd cce ccg cci ccl ccr ccs cct cda cdc cdd cde cdg cdi cdl cdr cds cdt ce- cea cec ced cee ceg cei cel cer ces cet cga cgc cgd cge cgg cgi cgl cgr cgs cgt ci- cia cic cid cie cig cii cil cir cis cit cl- cla clc cld cle clg cli cll clr cls clt cra crc crd cre crg cri crl crr crs crt csa csc csd cse csg csi csl csr css cst cta ctc ctd cte ctg cti ctl ctr cts ctt daa dac dad dae dag dai dal dar das dat dca dcc dcd dce dcg dci dcl dcr dcs dct dda ddc ddd dde ddg ddi ddl ddr dds ddt de- dea dec ded dee deg dei del der des det dga dgc dgd dge dgg dgi dgl dgr dgs dgt di- dia dic did die dig dii dil dir dis dit dl- dla dlc dld dle dlg dli dll dlr dls dlt dra drc drd dre drg dri drl drr drs drt dsa dsc dsd dse dsg dsi dsl dsr dss dst dta dtc dtd dte dtg dti dtl dtr dts dtt eaa eac ead eae eag eai eal ear eas eat ec- eca ecc ecd ece ecg eci ecl ecr ecs ect ed- eda edc edd ede edg edi edl edr eds edt eea eec eed eee eeg eel eer ees eet ega egc egd ege egg egi egl egr egs egt eia eic eid eie eig eii eil eir eis eit ela elc eld ele elg eli ell elr els elt era erc erd ere erg eri erl err ers ert es- esa esc esd ese esg esi esl esr ess est eta etc etd ete etg eti etl etr ets ett g-d gaa gac gad gae gag gai gal gar gas gat gca gcc gcd gce gcg gci gcl gcr gcs gct gda gdc gdd gde gdi gdl gdr gds gdt ge- gea gec ged gee geg gei gel ger ges get gga ggc ggd ggg ggi ggr ggs ggt gia gic gid gie gig gii gil gir gis git gla glc gld gle glg gli gll glr gls glt gra grc grd gre grg gri grl grr grs grt gsa gsc gsd gse gsg gsi gsl gsr gss gst gta gtc gtd gte gtg gti gtl gtr gts gtt i-d ia- iaa iac iad iae iag iai ial iar ias iat ica icc icd ice icg ici icl icr ics ict ida idc idd ide idg idi idl idr ids idt ie- iea iec ied iee ieg iei iel ier ies iet iga igc igd ige igg igi igl igr igs igt iia iic iid iie iii iil iir iis iit il- ila ilc ild ile ilg ili ill ilr ils ilt ir- ira irc ird ire irg iri irl irr irs irt is- isa isc isd ise isg isi isl isr iss ist ita itc itd ite itg iti itl its itt la- laa lac lad lae lag lai lal lar las lat lca lcc lcd lce lcg lci lcl lcr lcs lct lda ldc ldd lde ldg ldi ldl ldr lds ldt lea lec led lee leg lei lel ler les let lga lgc lgd lge lgg lgi lgl lgr lgs lgt lia lic lid lie lig lii lil lir lis lit lla llc lld lle llg lli lll llr lls llt lra lrc lrd lrg lri lrr lrs lrt lsa lsc lsd lse lsg lsi lsl lsr lss lst lta ltc ltd lte ltg lti ltl ltr lts ltt ra- raa rac rad rae rag rai ral rar ras rat rca rcc rcd rce rcg rci rcl rcr rcs rct rda rdc rdd rde rdg rdi rdl rdr rds rdt re- rea rec red ree reg rei rel rer res ret rga rgc rgd rge rgg rgi rgr rgs rgt ria ric rid rie rig rii ril rir ris rit rla rlc rld rle rlg rli rll rlr rls rlt rra rrc rrd rrg rri rrl rrr rrs rrt rsa rsc rsd rse rsg rsi rsl rsr rss rst rta rtc rtd rte rtg rti rtl rtr rts rtt saa sac sad sae sag sai sal sar sas sat sca scc scd sce scg sci scl scr scs sct sda sdc sdd sde sdg sdi sdl sdr sds sdt se- sea sec sed see seg sei sel ser ses set sga sgc sgd sge sgg sgi sgl sgr sgs sgt sia sic sid sie sig sii sil sir sis sit sla slc sld sle slg sli sll slr sls slt sr- sra src srd sre srg sri srl srr srs srt ss- ssa ssc ssd sse ssg ssi ssl ssr sss sst sta stc std ste stg sti stl str sts stt taa tac tad tae tag tai tal tar tas tat tca tcc tcd tce tcg tci tcl tcr tcs tct tda tdc tdd tde tdg tdi tdl tdr tds tdt te- tea tec ted tee teg tei tel ter tes tet tga tgc tge tgg tgi tgl tgr tgs tgt tia tic tid tie tig tii til tir tis tit tla tlc tld tle tlg tli tll tlr tls tlt tra