-al -ol a-a a-b a-c a-t aaa aab aac aag aal aan aao aat ab- aba abb abc abg abl abn abo abt ac- aca acb acc acg acl acn aco act ag- aga agb agc agg agl agn ago agt al- ala alb alc alg all aln alo alt an- ana anb anc ang anl ann ano ant aoa aob aoc aog aol aon aoo aot at- ata atb atc atg atl atn ato att baa bab bac bag bal ban bao bat bba bbb bbc bbg bbl bbn bbo bbt bca bcb bcc bcg bcl bcn bco bct bga bgb bgc bgg bgl bgn bgo bgt bla blb blc blg bll bln blo blt bna bnb bnc bng bnl bnn bno bnt boa bob boc bog bol bon boo bot bta btb btc btg btl btn bto btt c-- caa cab cac cag cal can cao cat cba cbb cbc cbg cbl cbn cbo cbt cca ccb ccc ccg ccl ccn cco cct cga cgb cgc cgg cgl cgn cgo cgt cl- cla clb clc clg cll cln clo clt cn- cna cnb cnc cng cnl cnn cno cnt co- coa cob coc cog col con coo cot cta ctb ctc ctg ctl ctn cto ctt gaa gab gac gag gal gan gao gat gba gbc gbg gbl gbn gbo gbt gca gcb gcc gcg gcl gcn gco gct gga ggb ggc ggg ggn ggo ggt gla glb glc glg gll gln glo glt gna gnb gnc gnl gnn gno gnt goa gob goc gog gol gon goo got gta gtb gtc gtg gtl gtn gto gtt la- laa lab lac lag lal lan lao lat lba lbb lbc lbg lbl lbo lbt lca lcb lcc lcg lcl lcn lco lct lga lgb lgc lgg lgl lgn lgo lgt lla llb llc llg lll lln llo llt lna lnb lnc lng lnl lnn lno lnt loa lob loc log lol lon loo lot lta ltb ltc ltg ltl lto ltt naa nab nac nag nal nan nao nat nba nbb nbc nbg nbl nbn nbo nbt nca ncb ncc ncg ncl ncn nco nct nga ngb ngc ngg ngl ngn ngo ngt nla nlb nlc nlg nll nln nlo nlt nna nnb nnc nng nnl nnn nno nnt no- noa nob noc nog nol non noo not nta ntb ntc ntg ntn nto ntt oaa oab oac oag oal oan oao oat ob- oba obb obc obg obl obn obo obt oc- oca ocb occ ocg ocl ocn oco oct oga ogc ogg ogl ogn ogo ogt ola olb olc olg oll oln olo olt on- ona onb onc ong onl onn ono ont oo- ooa oob ooc oog ool oon ooo oot ot- ota otb otc otg otl otn oto ott taa tab tac tag tal tan tao tat tba tbb tbc tbg tbl tbn tbo tbt tca tcb tcc tcg tcl tcn tco tct tga tgb tgc tgg tgl tgn tgo tgt tla tlc tlg tll tln tlo tlt tna tnb tnc tng tnl tnn tno tnt to- toa tob toc tog tol ton too tot tta ttb ttc ttg ttl ttn tto ttt