-al -ol a-a a-c a-t aaa aac aaf aag aal aao aar aat ac- aca acc acf acg acl aco acr act af- afa afc aff afg afl afo afr aft ag- aga agc agf agg agl ago agr agt al- ala alc alf alg all alo alr alt aoa aoc aof aog aol aoo aor aot ar- ara arc arf arg arl aro arr art at- ata atc atf atg atl ato atr att c-- caa cac caf cag cal cao car cat cca ccc ccf ccg ccl cco ccr cct cfa cfc cff cfg cfl cfo cfr cft cga cgc cgg cgl cgo cgr cgt cl- cla clc clf clg cll clo clr clt co- coa coc cof cog col coo cor cot cra crc crf crg crl cro crr crt cta ctc ctf ctg ctl cto ctr ctt faa fac faf fag fal fao far fat fca fcc fcf fcg fcl fco fcr fct ffa ffc fff ffg ffl ffo ffr fft fga fgc fgf fgg fgl fgr fgt fla flc flf flg fll flo flr flt foa foc fof fog fol foo for fot fra frc frf frg frl fro frr frt fta ftc ftf ftg ftl fto ftr ftt gaa gac gaf gag gal gao gar gat gca gcc gcf gcg gcl gco gcr gct gfa gfc gff gfl gfo gfr gft gga ggc ggg ggo ggr ggt gla glc glf glg gll glo glr glt goa goc gof gog gol goo gor got gra grc grf grg grl gro grr grt gta gtc gtf gtg gtl gto gtr gtt la- laa lac laf lag lal lao lar lat lca lcc lcf lcg lcl lco lcr lct lfa lfc lff lfg lfl lfo lfr lft lga lgc lgf lgg lgl lgo lgr lgt lla llc llf llg lll llo llr llt loa loc lof log lol loo lor lot lra lrc lrf lrg lro lrr lrt lta ltc ltf ltg ltl lto ltr ltt oaa oac oaf oag oal oao oar oat oc- oca occ ocf ocg ocl oco ocr oct of- ofa ofc off ofg ofl ofo ofr oft oga ogc ogf ogg ogl ogo ogt ola olc olf olg oll olo olt oo- ooa ooc oof oog ool ooo oor oot or- ora orc orf org orl oro orr ort ot- ota otc otf otg otl oto otr ott ra- raa rac raf rag ral rao rar rat rca rcc rcf rcg rcl rco rcr rct rfa rfc rff rfg rfl rfo rfr rft rga rgc rgf rgg rgo rgr rgt rla rlc rlf rlg rll rlo rlr rlt roa roc rof rog rol roo ror rot rra rrc rrf rrg rrl rrr rrt rta rtc rtf rtg rtl rto rtr rtt taa tac taf tag tal tao tar tat tca tcc tcf tcg tcl tco tcr tct tfa tfc tff tfg tfl tfo tfr tft tga tgc tgf tgg tgl tgo tgr tgt tla tlc tlf tlg tll tlo tlr tlt to- toa toc tof tog tol too tor tot tra trc trf trg trl tro trr trt tta ttc ttf ttg ttl tto ttr ttt