-al -ol a-a a-b a-c aaa aab aac aag aal aao aau ab- aba abb abc abg abl abo abu ac- aca acb acc acg acl aco acu ag- aga agb agc agg agl ago agu al- ala alb alc alg all alo alu aoa aob aoc aog aol aoo aou au- aua aub auc aug aul auo b-u baa bab bac bag bal bao bau bba bbb bbc bbg bbl bbo bbu bca bcb bcc bcg bcl bco bcu bga bgb bgc bgg bgl bgo bgu bla blb blc blg bll blo blu boa bob boc bog bol boo bou bua bub buc bug bul buo buu c-- caa cab cac cag cal cao cau cba cbb cbc cbg cbl cbo cbu cca ccb ccc ccg ccl cco ccu cga cgb cgc cgg cgl cgo cgu cl- cla clb clc clg cll clo clu co- coa cob coc cog col coo cou cua cub cuc cug cul cuo cuu gaa gab gac gag gal gao gau gba gbc gbg gbl gbo gbu gca gcb gcc gcg gcl gco gcu gga ggb ggc ggg ggo ggu gla glb glc glg gll glo glu goa gob goc gog gol goo gou gu- gua gub guc gug gul guo guu la- laa lab lac lag lal lao lau lba lbb lbc lbg lbl lbo lbu lca lcb lcc lcg lcl lco lcu lga lgb lgc lgg lgl lgo lgu lla llb llc llg lll llo llu loa lob loc log lol loo lou lua lub luc lug lul luo luu oaa oab oac oag oal oao oau ob- oba obb obc obg obl obo obu oc- oca ocb occ ocg ocl oco ocu oga ogc ogg ogl ogo ola olb olc olg oll olo olu oo- ooa oob ooc oog ool ooo ou- oua ouc oul ouo ua- uaa uab uac uag ual uao uau uba ubb ubc ubg ubl ubo ubu uca ucb ucc ucg ucl uco ucu uga ugb ugc ugg ugl ugo ugu ula ulb ulc ulg ull ulo ulu uoa uob uoc uog uol uoo uua uuc uug uuu