-al -er -ol a-a a-c a-t aaa aac aae aag aal aao aar aat ac- aca acc ace acg acl aco acr act aea aec aee aeg ael aeo aer aet ag- aga agc age agg agl ago agr agt al- ala alc ale alg all alo alr alt aoa aoc aoe aog aol aoo aor aot ar- ara arc are arg arl aro arr art at- ata atc ate atg atl ato atr att c-- caa cac cae cag cal cao car cat cca ccc cce ccg ccl cco ccr cct ce- cea cec cee ceg cel ceo cer cet cga cgc cge cgg cgl cgo cgr cgt cl- cla clc cle clg cll clo clr clt co- coa coc coe cog col coo cor cot cra crc cre crg crl cro crr crt cta ctc cte ctg ctl cto ctr ctt eaa eac eae eag eal eao ear eat ec- eca ecc ece ecg ecl eco ecr ect eea eec eee eeg eel eeo eer eet ega egc ege egg egl ego egr egt ela elc ele elg ell elo elr elt eo- eoa eoc eoe eog eol eoo eor eot era erc ere erg erl ero err ert eta etc ete etg etl eto etr ett gaa gac gae gag gal gao gar gat gca gcc gce gcg gcl gco gcr gct ge- gea gec gee geg gel geo ger get gga ggc ggg ggo ggr ggt gla glc gle glg gll glo glr glt goa goc goe gog gol goo gor got gra grc gre grg grl gro grr grt gta gtc gte gtg gtl gto gtr gtt la- laa lac lae lag lal lao lar lat lca lcc lce lcg lcl lco lcr lct lea lec lee leg lel leo ler let lga lgc lge lgg lgl lgo lgr lgt lla llc lle llg lll llo llr llt loa loc loe log lol loo lor lot lra lrc lrg lro lrr lrt lta ltc lte ltg ltl lto ltr ltt oaa oac oae oag oal oao oar oat oc- oca occ ocg ocl oco ocr oct oea oec oee oeg oel oeo oer oet oga ogc oge ogg ogl ogo ogt ola olc ole olg oll olo olt oo- ooa ooc oog ool ooo oor oot or- ora orc ore org orl oro orr ort ot- ota otc ote otg otl oto otr ott ra- raa rac rae rag ral rao rar rat rca rcc rce rcg rcl rco rcr rct re- rea rec ree reg rel reo rer ret rga rgc rge rgg rgo rgr rgt rla rlc rle rlg rll rlo rlr rlt roa roc roe rog rol roo ror rot rra rrc rrg rrl rrr rrt rta rtc rte rtg rtl rto rtr rtt taa tac tae tag tal tao tar tat tca tcc tce tcg tcl tco tcr tct te- tea tec tee teg tel teo ter tet tga tgc tge tgg tgl tgo tgr tgt tla tlc tle tlg tll tlo tlr tlt to- toa toc toe tog tol too tor tot tra trc tre trg trl tro trr trt tta ttc tte ttg ttl tto ttr ttt