-al a-a a-b a-c a-t aaa aab aac aae aaf aal aat aau ab- aba abb abc abe abf abl abt abu ac- aca acb acc ace acf acl act acu aea aeb aec aee aef ael aet aeu af- afa afb afc afe aff afl aft afu al- ala alb alc ale alf all alt alu at- ata atb atc ate atf atl att atu au- aua aub auc aue auf aul aut b-u baa bab bac bae baf bal bat bau bba bbb bbc bbe bbf bbl bbt bbu bca bcb bcc bce bcf bcl bct bcu be- bea beb bec bee bef bel bet beu bfa bfb bfc bfe bff bfl bft bfu bla blb blc ble blf bll blt blu bta btb btc bte btf btl btt btu bua bub buc bue buf bul but buu c-- caa cab cac cae caf cal cat cau cba cbb cbc cbe cbf cbl cbt cbu cca ccb ccc cce ccf ccl cct ccu ce- cea ceb cec cee cef cel cet ceu cfa cfb cfc cfe cff cfl cft cfu cl- cla clb clc cle clf cll clt clu cta ctb ctc cte ctf ctl ctt ctu cua cub cuc cue cuf cul cut cuu eaa eab eac eae eaf eal eat eau eba ebb ebc ebe ebf ebl ebt ebu ec- eca ecb ecc ece ecf ecl ect ecu eea eeb eec eee eef eel eet ef- efa efb efc efe eff efl eft ela elb elc ele elf ell elt elu eta etb etc ete etf etl ett etu eu- eua eub euc eue euf eul eut faa fab fac fae faf fal fat fau fba fbb fbc fbe fbf fbl fbt fbu fca fcb fcc fce fcf fcl fct fcu fea feb fec fee fef fel fet feu ffa ffc ffe fff ffl fft ffu fla flb flc fle flf fll flt flu fta ftb ftc fte ftf ftl ftt ftu fua fub fue fuf ful fut fuu la- laa lab lac lae laf lal lat lau lba lbb lbc lbe lbf lbl lbt lbu lca lcb lcc lce lcf lcl lct lcu lea leb lec lee lef lel let leu lfa lfb lfc lfe lff lfl lft lfu lla llb llc lle llf lll llt llu lta ltb ltc lte ltf ltl ltt ltu lua lub luc lue luf lul lut luu taa tab tac tae taf tal tat tau tba tbb tbc tbe tbf tbl tbt tbu tca tcb tcc tce tcf tcl tct tcu te- tea teb tec tee tef tel tet teu tfa tfb tfc tfe tff tfl tft tfu tla tlc tle tlf tll tlt tlu tta ttb ttc tte ttf ttl ttt ttu tua tub tuc tue tuf tul tut tuu ua- uaa uab uac uae uaf ual uat uau uba ubb ubc ube ubf ubl ubt ubu uca ucb ucc uce ucf ucl uct ucu uea ueb uec uee uef uel uet ufa ufc ufe uff ufl uft ufu ula ulb ulc ule ulf ull ult ulu uta utb utc ute utf utl utt utu uua uuc uue uut uuu

a-be a-fu aaaa aaab aaac aaae aaaf aaal aaba aabb aabc aabl aabt aaca aacb aacc aace aacf aacl aact aacu aaea aaec aafa aafb aafc aaff aafl aala aalc aale aall aalu aata aatc aatf aatt abaa abab abac abae abaf abal abat abau abb- abba abbb abbe abbt abca abcb abcc abcf abcl abct abec abee abel abet abff abla able abta abtu abua abue abuf abul abut ac-t acaa acab acac acae acat acba acbl acca accc acce accf acct accu ace- acea acec acel acet acfc acfe acfl acft acla aclc acle aclu acta actc acte actf actl actt actu acu- acue acuf acul acut aeac aeaf aecb aecl aect aela aelc aeta aetc aetf aett afaa afat afca afcb afcc afcu afee afel afet affa affc afft afla aflc afle afta aftc afte afua afue alaa alac alae alal alat alau alb- alba albc albe albu alca alcc alce alea alec alee alef alet aleu alfa alfe all- alla alle alll allu alta alte alua aluf alut at-l at-t ataa atab atac atae atal atat atca atcc atcf atcl atea atec atee atef atel atfb atfc atfe atla atle atta atte attu atua atub atuc atul auaa aube auca auce auct auel aufc aufe aul- aula aule aulf aull ault aulu aut- aute baaa baaf baal baat baba babb babe babu bac- baca bacc bace bact bael bafc baff baft bala balc bale balf ball balt balu bata batc bate batf batt batu bau- bauf baul bbau bbbb bbeb bbet bbfc bblb bcaa bcat bcbc bcca bccc bccl bcec bcet bcfc bctc bcuc beaf beal beat beau beba bebb bebe beca becu beeb beef beel beet befa befe beff beft bela bele bell belt belu beta betc bete bett betu bfca bffl bfta bftt blaa blab blac blae blat blau blbt blcu blea bleb blee blet bleu blfc blub blue bluf blut btaa btaf btcc btcl btec btfc btla bttb bual buat buba bubb bube bubu buca bucc buce bucu buea buel bueu bufc bufe buff bula bulb bule bull bult bulu but- buta bute butt caaa caab caac caaf caal caat caba cabe cabf cabu cac- caca cacc cace caec caeu cafa cafb cafc cafe caff cafl cafu cala calc cale calf call calt calu cat- cata catb catc cate catf catt catu cauc cauf caul caut cbac cbal cbat cbbc cbca cbcc cbce cbcl cbct cbcu cbea cbec cbee cbef cbet cbfb cbfc cblb cblc cbta cbtc cbtf cbtl ccaa ccab ccac ccaf ccat ccba ccbc ccca cccb cccc cccf cccl cccu ccee ccel ccfa ccfc ccff ccfl ccla cclc cctb cctc cctl cctt ccuc ccut ceac ceal ceat ceba cebu cec- ceca cece cect ceeb ceec ceel cef- cefa cefc cel- cela celc cele celf cell celt cet- ceta cete cfaa cfab cfac cfae cfbc cfbt cfca cfcb cfcf cfcl