-al -ol a-a a-b a-c a-t aaa aab aac aak aal aao aat aau ab- aba abb abc abk abl abo abt abu ac- aca acb acc ack acl aco act acu aka akb akc akk akl ako aku al- ala alb alc alk all alo alt alu aoa aob aoc aok aol aoo aot aou at- ata atb atc atl ato att atu au- aua aub auc auk aul auo aut b-u baa bab bac bak bal bao bat bau bba bbb bbc bbk bbl bbo bbt bbu bca bcb bcc bck bcl bco bct bcu bka bkb bkc bkk bkl bko bkt bla blb blc blk bll blo blt blu boa bob boc bok bol boo bot bou bta btb btc btk btl bto btt btu bua bub buc buk bul buo but buu c-- caa cab cac cak cal cao cat cau cba cbb cbc cbk cbl cbo cbt cbu cca ccb ccc cck ccl cco cct ccu cka ckb ckc cko ckt cl- cla clb clc clk cll clo clt clu co- coa cob coc cok col coo cot cou cta ctb ctc ctk ctl cto ctt ctu cua cub cuc cuk cul cuo cut cuu k-t ka- kaa kab kac kak kal kao kat kau kba kbb kbc kbk kbl kbo kbu kca kcb kcc kck kcl kct kcu kkb kkc kkk kkl kkt kku kl- kla klb klc klo klt klu koa kob koc kok kol koo kot kou kta ktb ktc ktk ktl kto ktt ktu kub kuc kuk kul kut kuu la- laa lab lac lak lal lao lat lau lba lbb lbc lbk lbl lbo lbt lbu lca lcb lcc lck lcl lco lct lcu lka lkb lkl lkt lla llb llc llk lll llo llt llu loa lob loc lok lol loo lot lou lta ltb ltc ltk ltl lto ltt ltu lua lub luc luk lul luo lut luu oaa oab oac oak oal oao oat oau ob- oba obb obc obk obl obo obt obu oc- oca ocb occ ock ocl oco oct ocu oka okb okc okk okl oko oku ola olb olc olk oll olo olt olu oo- ooa oob ooc ook ool ooo oot ot- ota otb otc otk otl oto ott otu ou- oua ouc ouk oul ouo out taa tab tac tak tal tao tat tau tba tbb tbc tbk tbl tbo tbt tbu tca tcb tcc tck tcl tco tct tcu tka tkb tkc tkk tkl tko tkt tla tlc tlk tll tlo tlt tlu to- toa tob toc tok tol too tot tou tta ttb ttc ttk ttl tto ttt ttu tua tub tuc tuk tul tuo tut tuu ua- uaa uab uac uak ual uao uat uau uba ubb ubc ubk ubl ubo ubt ubu uca ucb ucc uck ucl uco uct ucu uka ukb ukc ukk ukl uku ula ulb ulc ulk ull ulo ult ulu uoa uob uoc uok uol uoo uot uta utb utc utk utl uto utt utu uua uuc uut uuu