-al -ol a-a a-b a-c a-t aaa aab aac aae aag aal aan aao aat aau ab- aba abb abc abe abg abl abn abo abt abu ac- aca acb acc ace acg acl acn aco act acu aea aeb aec aee aeg ael aen aeo aet aeu ag- aga agb agc age agg agl agn ago agt agu al- ala alb alc ale alg all aln alo alt alu an- ana anb anc ane ang anl ann ano ant anu aoa aob aoc aoe aog aol aon aoo aot aou at- ata atb atc ate atg atl atn ato att atu au- aua aub auc aue aug aul aun auo aut b-u baa bab bac bae bag bal ban bao bat bau bba bbb bbc bbe bbg bbl bbn bbo bbt bbu bca bcb bcc bce bcg bcl bcn bco bct bcu be- bea beb bec bee beg bel ben beo bet beu bga bgb bgc bge bgg bgl bgn bgo bgt bgu bla blb blc ble blg bll bln blo blt blu bna bnb bnc bne bng bnl bnn bno bnt bnu boa bob boc boe bog bol bon boo bot bou bta btb btc bte btg btl btn bto btt btu bua bub buc bue bug bul bun buo but buu c-- caa cab cac cae cag cal can cao cat cau cba cbb cbc cbe cbg cbl cbn cbo cbt cbu cca ccb ccc cce ccg ccl ccn cco cct ccu ce- cea ceb cec cee ceg cel cen ceo cet ceu cga cgb cgc cge cgg cgl cgn cgo cgt cgu cl- cla clb clc cle clg cll cln clo clt clu cn- cna cnb cnc cne cng cnl cnn cno cnt cnu co- coa cob coc coe cog col con coo cot cou cta ctb ctc cte ctg ctl ctn cto ctt ctu cua cub cuc cue cug cul cun cuo cut cuu eaa eab eac eae eag eal ean eao eat eau eba ebb ebc ebe ebg ebl ebn ebo ebt ebu ec- eca ecb ecc ece ecg ecl ecn eco ect ecu eea eeb eec eee eeg eel een eeo eet ega egb egc ege egg egl egn ego egt egu ela elb elc ele elg ell eln elo elt elu en- ena enb enc ene eng enl enn eno ent enu eo- eoa eob eoc eoe eog eol eon eoo eot eou eta etb etc ete etg etl etn eto ett etu eu- eua eub euc eue eug eul eun eut gaa gab gac gae gag gal gan gao gat gau gba gbc gbe gbg gbl gbn gbo gbt gbu gca gcb gcc gce gcg gcl gcn gco gct gcu ge- gea geb gec gee geg gel gen geo get geu gga ggb ggc ggg ggn ggo ggt ggu gla glb glc gle glg gll gln glo glt glu gna gnb gnc gne gnl gnn gno gnt gnu goa gob goc goe gog gol gon goo got gou gta gtb gtc gte gtg gtl gtn gto gtt gtu gu- gua gub guc gue gug gul gun guo gut guu la- laa lab lac lae lag lal lan lao lat lau lba lbb lbc lbe lbg lbl lbo lbt lbu lca lcb lcc lce lcg lcl lcn lco lct lcu lea leb lec lee leg lel len leo let leu lga lgb lgc lge lgg lgl lgn lgo lgt lgu lla llb llc lle llg lll lln llo llt llu lna lnb lnc lne lng lnl lnn lno lnt lnu loa lob loc loe log lol lon loo lot lou lta ltb ltc lte ltg ltl lto ltt ltu lua lub luc lue lug lul lun luo lut luu naa nab nac nae nag nal nan nao nat nau nba nbb nbc nbe nbg nbl nbn nbo nbt nbu nca ncb ncc nce ncg ncl ncn nco nct ncu ne- nea neb nec nee neg nel nen neo net neu nga ngb ngc nge ngg ngl ngn ngo ngt ngu nla nlb nlc nle nlg nll nln nlo nlt nlu nna nnb nnc nne nng nnl nnn nno nnt nnu no- noa nob noc noe nog nol non noo not nou nta ntb ntc nte ntg ntn nto ntt ntu nua nub nuc nue nug nul nun nuo nut nuu oaa oab oac oae oag oal oan oao oat oau ob- oba obb obc obe obg obl obn obo obt obu oc- oca ocb occ ocg ocl ocn oco oct ocu oea oeb oec oee oeg oel oen oeo oet oga ogc oge ogg ogl ogn ogo ogt ola olb olc ole olg oll oln olo olt olu on- ona onb onc one ong onl onn ono ont onu oo- ooa oob ooc oog ool oon ooo oot ot- ota otb otc ote otg otl otn oto ott otu ou- oua ouc oue oul oun ouo out taa tab tac tae tag tal tan tao tat tau tba tbb tbc tbe tbg tbl tbn tbo tbt tbu tca tcb tcc tce tcg tcl tcn tco tct tcu te- tea teb tec tee teg tel ten teo tet teu tga tgb tgc tge tgg tgl tgn tgo tgt tgu tla tlc tle tlg tll tln tlo tlt tlu tna tnb tnc tne tng tnl tnn tno tnt to- toa tob toc toe tog tol ton too tot tou tta ttb ttc tte ttg ttl ttn tto ttt ttu tua tub tuc tue tug tul tun tuo tut tuu ua- uaa uab uac uae uag ual uan uao uat uau uba ubb ubc ube ubg ubl ubn ubo ubt ubu uca ucb ucc uce ucg ucl ucn uco uct ucu uea ueb uec uee ueg uel uen uet uga ugb ugc uge ugg ugl ugn ugo ugt ugu ula ulb ulc ule ulg ull uln ulo ult ulu un- una unb unc une ung unl unn uno unt unu uoa uob uoc uoe uog uol uon uoo uot uta utb utc ute utl utn