-al a-a a-b a-c aaa aab aac aag aah aal aau ab- aba abb abc abg abh abl abu ac- aca acb acc acg ach acl acu ag- aga agb agc agg agh agl agu aha ahb ahc ahg ahh ahl ahu al- ala alb alc alg alh all alu au- aua aub auc aug auh aul b-u baa bab bac bag bah bal bau bba bbb bbc bbg bbh bbl bbu bca bcb bcc bcg bch bcl bcu bga bgb bgc bgg bgh bgl bgu bha bhb bhc bhg bhh bhl bhu bla blb blc blg blh bll blu bua bub buc bug buh bul buu c-- caa cab cac cag cah cal cau cba cbb cbc cbg cbh cbl cbu cca ccb ccc ccg cch ccl ccu cga cgb cgc cgg cgh cgl cgu ch- cha chb chc chg chh chl chu cl- cla clb clc clg clh cll clu cua cub cuc cug cuh cul cuu gaa gab gac gag gah gal gau gba gbc gbg gbh gbl gbu gca gcb gcc gcg gch gcl gcu gga ggb ggc ggg ggh ggu gha ghb ghc ghg ghh ghl gla glb glc glg glh gll glu gu- gua gub guc gug gul guu haa hab hac hag hah hal hau hba hbb hbc hbg hbh hbl hbu hca hcb hcc hcg hch hcl hga hgb hgc hgg hgh hgl hgu hha hhb hhc hhg hhh hhl hhu hla hlb hlc hlg hlh hll hlu hua hub huc hug huh hul huu la- laa lab lac lag lah lal lau lba lbb lbc lbg lbh lbl lbu lca lcb lcc lcg lch lcl lcu lga lgb lgc lgg lgh lgl lgu lha lhb lhc lhh lhu lla llb llc llg lll llu lua lub luc lug luh lul luu ua- uaa uab uac uag uah ual uau uba ubb ubc ubg ubh ubl ubu uca ucb ucc ucg uch ucl ucu uga ugb ugc ugg ugh ugl ugu uha uhb uhc uhh uhl uhu ula ulb ulc ulg ull ulu uua uuc uug uuu