-al -th a-a a-b a-c a-t aaa aab aac aag aah aal aat aau ab- aba abb abc abg abh abl abt abu ac- aca acb acc acg ach acl act acu ag- aga agb agc agg agh agl agt agu aha ahb ahc ahg ahh ahl aht ahu al- ala alb alc alg alh all alt alu at- ata atb atc atg ath atl att atu au- aua aub auc aug auh aul aut b-u baa bab bac bag bah bal bat bau bba bbb bbc bbg bbh bbl bbt bbu bca bcb bcc bcg bch bcl bct bcu bga bgb bgc bgg bgh bgl bgt bgu bha bhb bhc bhg bhh bhl bht bhu bla blb blc blg blh bll blt blu bta btb btc btg bth btl btt btu bua bub buc bug buh bul but buu c-- caa cab cac cag cah cal cat cau cba cbb cbc cbg cbh cbl cbt cbu cca ccb ccc ccg cch ccl cct ccu cga cgb cgc cgg cgh cgl cgt cgu ch- cha chb chc chg chh chl cht chu cl- cla clb clc clg clh cll clt clu cta ctb ctc ctg cth ctl ctt ctu cua cub cuc cug cuh cul cut cuu gaa gab gac gag gah gal gat gau gba gbc gbg gbh gbl gbt gbu gca gcb gcc gcg gch gcl gct gcu gga ggb ggc ggg ggh ggt ggu gha ghb ghc ghg ghh ghl ght gla glb glc glg glh gll glt glu gta gtb gtc gtg gth gtl gtt gtu gu- gua gub guc gug gul gut guu haa hab hac hag hah hal hat hau hba hbb hbc hbg hbh hbl hbt hbu hca hcb hcc hcg hch hcl hct hga hgb hgc hgg hgh hgl hgt hgu hha hhb hhc hhg hhh hhl hht hhu hla hlb hlc hlg hlh hll hlt hlu hta htb htc htg hth htl htt hua hub huc hug huh hul hut huu la- laa lab lac lag lah lal lat lau lba lbb lbc lbg lbh lbl lbt lbu lca lcb lcc lcg lch lcl lct lcu lga lgb lgc lgg lgh lgl lgt lgu lha lhb lhc lhh lht lhu lla llb llc llg lll llt llu lta ltb ltc ltg lth ltl ltt ltu lua lub luc lug luh lul lut luu taa tab tac tag tah tal tat tau tba tbb tbc tbg tbh tbl tbt tbu tca tcb tcc tcg tch tcl tct tcu tga tgb tgc tgg tgh tgl tgt tgu th- tha thb thc thg thh thl tht thu tla tlc tlg tlh tll tlt tlu tta ttb ttc ttg tth ttl ttt ttu tua tub tuc tug tuh tul tut tuu ua- uaa uab uac uag uah ual uat uau uba ubb ubc ubg ubh ubl ubt ubu uca ucb ucc ucg uch ucl uct ucu uga ugb ugc ugg ugh ugl ugt ugu uha uhb uhc uhh uhl uht uhu ula ulb ulc ulg ull ult ulu uta utb utc uth utl utt utu uua uuc uug uut uuu