-al a-a a-b a-c aaa aab aac aak aal aan aau ab- aba abb abc abk abl abn abu ac- aca acb acc ack acl acn acu aka akb akc akk akl akn aku al- ala alb alc alk all aln alu an- ana anb anc ank anl ann anu au- aua aub auc auk aul aun b-u baa bab bac bak bal ban bau bba bbb bbc bbk bbl bbn bbu bca bcb bcc bck bcl bcn bcu bka bkb bkc bkk bkl bkn bla blb blc blk bll bln blu bna bnb bnc bnk bnl bnn bnu bua bub buc buk bul bun buu c-- caa cab cac cak cal can cau cba cbb cbc cbk cbl cbn cbu cca ccb ccc cck ccl ccn ccu cka ckb ckc cl- cla clb clc clk cll cln clu cn- cna cnb cnc cnl cnn cnu cua cub cuc cuk cul cun cuu ka- kaa kab kac kak kal kan kau kba kbb kbc kbk kbl kbn kbu kca kcb kcc kck kcl kcn kcu kkb kkc kkk kkl kkn kku kl- kla klb klc klu kn- kna knc knk knl knn knu kub kuc kuk kul kun kuu la- laa lab lac lak lal lan lau lba lbb lbc lbk lbl lbu lca lcb lcc lck lcl lcn lcu lka lkb lkl lla llb llc llk lll lln llu lna lnb lnc lnk lnl lnn lnu lua lub luc luk lul lun luu naa nab nac nak nal nan nau nba nbb nbc nbk nbl nbn nbu nca ncb ncc nck ncl ncn ncu nka nkc nkk nkn nku nla nlb nlc nlk nll nln nlu nna nnb nnc nnk nnl nnn nnu nua nub nuc nuk nul nun nuu ua- uaa uab uac uak ual uan uau uba ubb ubc ubk ubl ubn ubu uca ucb ucc uck ucl ucn ucu uka ukb ukc ukk ukl ukn uku ula ulb ulc ulk ull uln ulu un- una unb unc unk unl unn unu uua uuc uun uuu

-ana a-ak a-un aaaa aaab aaac aaal aaan aaba aabb aabc aabl aaca aacb aacc aack aacl aacn aacu aaka aaku aala aalc aall aalu aana abaa abab abac abak abal aban abau abb- abba abbb abca abcb abcc abcl abcn abla abnu abua abuk abul abun acaa acab acac acan acba acbl acca accc accu acla aclc aclu acu- acul akaa akal akan akca akka akku akna akua alaa alac alak alal alan alau alb- alba albc albu alca alcc alk- alka alkb alku all- alla alll alln allu alna alua aluk alun ana- anaa anab anac anak anal anan anau anba anbb anbl anbu anca ancc ank- anka anku anla anlc anln anlu anna annb anua anub anul anun auaa auca aul- aula aull auln aulu auna aunk baaa baak baal baan baba babb babu bac- baca bacc back bacn bak- baka bakl baku bala balc balk ball balu bana banc bank bann banu bau- bauk baul bbau bbbb bblb bcaa bcbc bcca bccc bccl bcnu bcuc blaa blab blac blak blan blau blcu blkb blub bual buba bubb bubu buca bucc buck bucu buka bukk buku bula bulb bulk bull bulu buna bunb bunk bunn bunu caaa caab caac caal caan caba cabu cac- caca cacc cack caka cala calc calk call calu cana canc cank cann cauc cauk caul cbac cbal cbbc cbca cbcc cbcl cbcn cbcu cbka cbkl cbkn cblb cblc cbln cbna ccaa ccab ccac ccba ccbc ccbn ccca cccb cccc cccl cccu ccla cclc ccna ccnb ccnc ccnu ccuc ckac ckan ckbc ckck ckcl ckln cknb cknc clab clan clau club clun cnaa cnac cnbc cnbl cnna cuan cuau cub- cuba cubb cuca cucc cuck cucn cuk- cuka cula culb culc culk cull cuna kaaa kaab kaak kaal kaan kaba kabb kabc kabu kacb kacc kacl kacu kaka kakc kakk kakn kaku kala kalb kalc kalk kall kaln kalu kana kanb kann kanu kau- kaub kauc kauk kaul kaun kbaa kbab kbac kbak kbal kbba kbbb kbbc kbbk kbbl kbbu kbca kbcb kbck kbcl kbcu kbkb kbkk kbkl kbla kblb kbll kblu kbna kbnl kbnn kbnu kbua kbub kbuc kbuk kbul kbun kbuu kcaa kcab kcac kcal kcau kcba kcbc kcbk kcbl kcbu kcca kccb kccc kcck kccl kccu kckc kckk kckl kckn kcla kclc kclk kcll kcln kclu kcnb kcua kcub kcuk kcul kkaa kkac kkal kkan kkba kkbb kkbl kkbn kkcb kkck kkcl kkcn kkkk kklb kklc kkll kkln kknb kknn kknu kkua kkuu klaa klab klac klak klal klan klbb klbc klbl klbn klbu klca klcb klcc klck klcl klcn klka klkc klkk klkl klkn klla kllb kllc kllk klnc klnn klub kluk klun kluu knaa knab knac knal knan knau knba knbb knbc knbn knbu knca kncb knck kncn kncu knkk knla knlb knlc knnb knnk knub knuk kuac kuan kuau kuba kubb kubc kubu kuca kucb kucc kuka kukk kukl kukn kuku kula kulb kull kuln kulu kuna kunc kunk kunu kuub kuuk kuul kuuu laaa laac laak laal laan laba labu laca lacc lack lacl lacu laka lala lall lalu lan- lana lanc lank lann lanu laub lauk laul laun lbcc lcac lcbc lcca lccc lkab lkal lkan llan llcc lllc llll lnnk luan luau luba luca luck luka lula lull lulu luna lunk lunn luua luuk naaa naab naac naal naan naba nabc nabk nabl nabu naca nacc nack nacl naka nala nalc nall nalu nan- nana nanb nann nanu naul nbaa nbak nbbc nbca nbcc ncaa ncac ncba ncbc ncca nccc nccn nccu nclc ncln ncna ncnc ncua ncuk nkau nlab nlcc nnnn nuan nuba nubc nubk nubl nuca nuck nucu nuka nuku null nuna nunc nunk nunn nuuk uabc uaca uaua ubac ubal ubba ubla ucak ucal ucan ucbc ucca ucka ucla ucua ukba ukcc ukla uknc ulaa ulan ulbc ulcc ulla ulna ulua uluk ulul unaa unac unal unan unau unca uncc uncl unka unkl unkn unna uulu uuuu

-aaa- aabaa aabba aacbc abaab