-al a-a a-b a-c a-t aaa aab aac aae aaf aal aan aat aau ab- aba abb abc abe abf abl abn abt abu ac- aca acb acc ace acf acl acn act acu aea aeb aec aee aef ael aen aet aeu af- afa afb afc afe aff afl afn aft afu al- ala alb alc ale alf all aln alt alu an- ana anb anc ane anf anl ann ant anu at- ata atb atc ate atf atl atn att atu au- aua aub auc aue auf aul aun aut b-u baa bab bac bae baf bal ban bat bau bba bbb bbc bbe bbf bbl bbn bbt bbu bca bcb bcc bce bcf bcl bcn bct bcu be- bea beb bec bee bef bel ben bet beu bfa bfb bfc bfe bff bfl bfn bft bfu bla blb blc ble blf bll bln blt blu bna bnb bnc bne bnf bnl bnn bnt bnu bta btb btc bte btf btl btn btt btu bua bub buc bue buf bul bun but buu c-- caa cab cac cae caf cal can cat cau cba cbb cbc cbe cbf cbl cbn cbt cbu cca ccb ccc cce ccf ccl ccn cct ccu ce- cea ceb cec cee cef cel cen cet ceu cfa cfb cfc cfe cff cfl cfn cft cfu cl- cla clb clc cle clf cll cln clt clu cn- cna cnb cnc cne cnf cnl cnn cnt cnu cta ctb ctc cte ctf ctl ctn ctt ctu cua cub cuc cue cuf cul cun cut cuu eaa eab eac eae eaf eal ean eat eau eba ebb ebc ebe ebf ebl ebn ebt ebu ec- eca ecb ecc ece ecf ecl ecn ect ecu eea eeb eec eee eef eel een eet ef- efa efb efc efe eff efl eft ela elb elc ele elf ell eln elt elu en- ena enb enc ene enf enl enn ent enu eta etb etc ete etf etl etn ett etu eu- eua eub euc eue euf eul eun eut faa fab fac fae faf fal fan fat fau fba fbb fbc fbe fbf fbl fbn fbt fbu fca fcb fcc fce fcf fcl fcn fct fcu fea feb fec fee fef fel fen fet feu ffa ffc ffe fff ffl ffn fft ffu fla flb flc fle flf fll fln flt flu fna fnb fnc fne fnf fnl fnn fnt fnu fta ftb ftc fte ftf ftl ftn ftt ftu fua fub fue fuf ful fun fut fuu la- laa lab lac lae laf lal lan lat lau lba lbb lbc lbe lbf lbl lbt lbu lca lcb lcc lce lcf lcl lcn lct lcu lea leb lec lee lef lel len let leu lfa lfb lfc lfe lff lfl lfn lft lfu lla llb llc lle llf lll lln llt llu lna lnb lnc lne lnl lnn lnt lnu lta ltb ltc lte ltf ltl ltt ltu lua lub luc lue luf lul lun lut luu naa nab nac nae naf nal nan nat nau nba nbb nbc nbe nbf nbl nbn nbt nbu nca ncb ncc nce ncf ncl ncn nct ncu ne- nea neb nec nee nef nel nen net neu nfa nfb nfc nfe nff nfl nfn nft nfu nla nlb nlc nle nlf nll nln nlt nlu nna nnb nnc nne nnf nnl nnn nnt nnu nta ntb ntc nte ntf ntn ntt ntu nua nub nuc nue nul nun nut nuu taa tab tac tae taf tal tan tat tau tba tbb tbc tbe tbf tbl tbn tbt tbu tca tcb tcc tce tcf tcl tcn tct tcu te- tea teb tec tee tef tel ten tet teu tfa tfb tfc tfe tff tfl tfn tft tfu tla tlc tle tlf tll tln tlt tlu tna tnb tnc tne tnf tnl tnn tnt tta ttb ttc tte ttf ttl ttn ttt ttu tua tub tuc tue tuf tul tun tut tuu ua- uaa uab uac uae uaf ual uan uat uau uba ubb ubc ube ubf ubl ubn ubt ubu uca ucb ucc uce ucf ucl ucn uct ucu uea ueb uec uee uef uel uen uet ufa ufc ufe uff ufl ufn uft ufu ula ulb ulc ule ulf ull uln ult ulu un- una unb unc une unf unl unn unt unu uta utb utc ute utf utl utn utt utu uua uuc uue uun uut uuu