-al -er -ol a-a a-c a-t aaa aac aae aaf aag aal aao aar aas aat ac- aca acc ace acf acg acl aco acr acs act aea aec aee aef aeg ael aeo aer aes aet af- afa afc afe aff afg afl afo afr afs aft ag- aga agc age agf agg agl ago agr ags agt al- ala alc ale alf alg all alo alr als alt aoa aoc aoe aof aog aol aoo aor aos aot ar- ara arc are arf arg arl aro arr ars art as- asa asc ase asf asg asl aso asr ass ast at- ata atc ate atf atg atl ato atr ats att c-- caa cac cae caf cag cal cao car cas cat cca ccc cce ccf ccg ccl cco ccr ccs cct ce- cea cec cee cef ceg cel ceo cer ces cet cfa cfc cfe cff cfg cfl cfo cfr cfs cft cga cgc cge cgg cgl cgo cgr cgs cgt cl- cla clc cle clf clg cll clo clr cls clt co- coa coc coe cof cog col coo cor cos cot cra crc cre crf crg crl cro crr crs crt csa csc cse csf csg csl cso csr css cst cta ctc cte ctf ctg ctl cto ctr cts ctt eaa eac eae eaf eag eal eao ear eas eat ec- eca ecc ece ecf ecg ecl eco ecr ecs ect eea eec eee eef eeg eel eeo eer ees eet ef- efa efc efe eff efg efl efo efr efs eft ega egc ege egf egg egl ego egr egs egt ela elc ele elf elg ell elo elr els elt eo- eoa eoc eoe eof eog eol eoo eor eos eot era erc ere erf erg erl ero err ers ert es- esa esc ese esf esg esl eso esr ess est eta etc ete etf etg etl eto etr ets ett faa fac fae faf fag fal fao far fas fat fca fcc fce fcf fcg fcl fco fcr fcs fct fea fec fee fef feg fel feo fer fes fet ffa ffc ffe fff ffg ffl ffo ffr ffs fft fga fgc fge fgf fgg fgl fgr fgs fgt fla flc fle flf flg fll flo flr fls flt foa foc foe fof fog fol foo for fos fot fra frc fre frf frg frl fro frr frs frt fsa fsc fse fsf fsg fsl fso fsr fss fst fta ftc fte ftf ftg ftl fto ftr fts ftt gaa gac gae gaf gag gal gao gar gas gat gca gcc gce gcf gcg gcl gco gcr gcs gct ge- gea gec gee gef geg gel geo ger ges get gfa gfc gfe gff gfl gfo gfr gfs gft gga ggc ggg ggo ggr ggs ggt gla glc gle glf glg gll glo glr gls glt goa goc goe gof gog gol goo gor gos got gra grc gre grf grg grl gro grr grs grt gsa gsc gse gsf gsg gsl gso gsr gss gst gta gtc gte gtf gtg gtl gto gtr gts gtt la- laa lac lae laf lag lal lao lar las lat lca lcc lce lcf lcg lcl lco lcr lcs lct lea lec lee lef leg lel leo ler les let lfa lfc lfe lff lfg lfl lfo lfr lfs lft lga lgc lge lgf lgg lgl lgo lgr lgs lgt lla llc lle llf llg lll llo llr lls llt loa loc loe lof log lol loo lor los lot lra lrc lrf lrg lro lrr lrs lrt lsa lsc lse lsf lsg lsl lso lsr lss lst lta ltc lte ltf ltg ltl lto ltr lts ltt oaa oac oae oaf oag oal oao oar oas oat oc- oca occ ocf ocg ocl oco ocr ocs oct oea oec oee oef oeg oel oeo oer oes oet of- ofa ofc ofe off ofg ofl ofo ofr ofs oft oga ogc oge ogf ogg ogl ogo ogs ogt ola olc ole olf olg oll olo ols olt oo- ooa ooc oof oog ool ooo oor oos oot or- ora orc ore orf org orl oro orr ors ort os- osa osc ose osf osg osl oso osr oss ost ot- ota otc ote otf otg otl oto otr ots ott ra- raa rac rae raf rag ral rao rar ras rat rca rcc rce rcf rcg rcl rco rcr rcs rct re- rea rec ree ref reg rel reo rer res ret rfa rfc rfe rff rfg rfl rfo rfr rfs rft rga rgc rge rgf rgg rgo rgr rgs rgt rla rlc rle rlf rlg rll rlo rlr rls rlt roa roc roe rof rog rol roo ror ros rot rra rrc rrf rrg rrl rrr rrs rrt rsa rsc rse rsf rsg rsl rso rsr rss rst rta rtc rte rtf rtg rtl rto rtr rts rtt saa sac sae saf sag sal sao sar sas sat sca scc sce scf scg scl sco scr scs sct se- sea sec see sef seg sel seo ser ses set sfa sfc sfe sff sfg sfl sfo sfr sfs sft sga sgc sge sgf sgg sgl sgo sgr sgs sgt sla slc sle slf slg sll slo slr sls slt soa soc soe sof sog sol soo sor sos sot sr- sra src sre srf srg srl sro srr srs srt ss- ssa ssc sse ssf ssg ssl sso ssr sss sst sta stc ste stf stg stl sto str sts stt taa tac tae taf tag tal tao tar tas tat tca tcc tce tcf tcg tcl tco tcr tcs tct te- tea tec tee tef teg tel teo ter tes tet tfa tfc tfe tff tfg tfl tfo tfr tfs tft tga tgc tge tgf tgg tgl tgo tgr tgs tgt tla tlc tle tlf tlg tll tlo tlr tls tlt to- toa toc toe tof tog tol too tor tos tot tra trc tre trf trg trl tro trr trs