-al a-a a-b a-c a-t aaa aab aac aag aal aar aat aau ab- aba abb abc abg abl abr abt abu ac- aca acb acc acg acl acr act acu ag- aga agb agc agg agl agr agt agu al- ala alb alc alg all alr alt alu ar- ara arb arc arg arl arr art aru at- ata atb atc atg atl atr att atu au- aua aub auc aug aul aur aut b-u baa bab bac bag bal bar bat bau bba bbb bbc bbg bbl bbr bbt bbu bca bcb bcc bcg bcl bcr bct bcu bga bgb bgc bgg bgl bgr bgt bgu bla blb blc blg bll blr blt blu bra brb brg brl brr brt bru bta btb btc btg btl btr btt btu bua bub buc bug bul bur but buu c-- caa cab cac cag cal car cat cau cba cbb cbc cbg cbl cbr cbt cbu cca ccb ccc ccg ccl ccr cct ccu cga cgb cgc cgg cgl cgr cgt cgu cl- cla clb clc clg cll clr clt clu cra crb crc crg crl crr crt cru cta ctb ctc ctg ctl ctr ctt ctu cua cub cuc cug cul cur cut cuu gaa gab gac gag gal gar gat gau gba gbc gbg gbl gbr gbt gbu gca gcb gcc gcg gcl gcr gct gcu gga ggb ggc ggg ggr ggt ggu gla glb glc glg gll glr glt glu gra grb grc grg grl grr grt gru gta gtb gtc gtg gtl gtr gtt gtu gu- gua gub guc gug gul gur gut guu la- laa lab lac lag lal lar lat lau lba lbb lbc lbg lbl lbr lbt lbu lca lcb lcc lcg lcl lcr lct lcu lga lgb lgc lgg lgl lgr lgt lgu lla llb llc llg lll llr llt llu lra lrb lrc lrg lrr lrt lru lta ltb ltc ltg ltl ltr ltt ltu lua lub luc lug lul lur lut luu ra- raa rab rac rag ral rar rat rau rba rbb rbc rbg rbl rbr rbt rbu rca rcb rcc rcg rcl rcr rct rcu rga rgb rgc rgg rgr rgt rla rlc rlg rll rlr rlt rlu rra rrb rrc rrg rrl rrr rrt rru rta rtb rtc rtg rtl rtr rtt rtu rua rub ruc rug rur rut ruu taa tab tac tag tal tar tat tau tba tbb tbc tbg tbl tbr tbt tbu tca tcb tcc tcg tcl tcr tct tcu tga tgb tgc tgg tgl tgr tgt tgu tla tlc tlg tll tlr tlt tlu tra trb trc trg trl trr trt tru tta ttb ttc ttg ttl ttr ttt ttu tua tub tuc tug tul tur tut tuu ua- uaa uab uac uag ual uar uat uau uba ubb ubc ubg ubl ubr ubt ubu uca ucb ucc ucg ucl ucr uct ucu uga ugb ugc ugg ugl ugr ugt ugu ula ulb ulc ulg ull ulr ult ulu ur- ura urb urc urg url urr urt uru uta utb utc utl utr utt utu uua uuc uug uur uut uuu

aaaa aaab aaac aaal aaar aaba aabb aabc aabl aabt aaca aacb aacc aacl aacr aact aacu aala aalc aall aalu aara aarc aart aaru aata aatc aatt abaa abab abac abag abal abar abat abau abb- abba abbb abbr abbt abca abcb abcc abcl abcr abct abgl abla abra abrc abta abtu abua abug abul abut ac-t acaa acab acac acag acar acat acba acbl acca accc acct accu acga acgr acla aclc aclr aclu acr- acra acrc acrr acta actc actg actl actt actu acu- acul acur acut agac agag agal agar agat agau agba agca agcc agct agga aggu agla aglc aglu agra agrl agta agtr agua agul agur agut alaa alac alag alal alar alat alau alb- alba albc albu alca alcc alg- alga all- alla alll allr allu alta alua alug alur alut arab arac arag aral arar arat arau arba arc- arca arct arga argb arla arr- arra arrc arrg arrr arrt arru arta artc artr arua arub arug arul arut at-l at-t ataa atab atac atal atar atat atca atcc atcl atcr atla atra atrc atru atta attr attu atua atub atuc atug atul atur auaa auca auct auga aul- aula aull ault aulu aur- aura aut- auug baaa baal baar baat baba babb babr babu bac- baca bacc bact baga bagg bagt bala balc ball balt balu bar- bara barb barc barg barr bart baru bata batc batt batu bau- baug baul baur bbau bbbb bbga bblb bbrc bbrg bcaa bcar bcat bcbc bcbg bcca bccc bccl bcra bcru bctc bcuc bgca blaa blab blac blag blat blau blbt blcu blrc blrg blub blur blut brab brac brag brat brau brca brcb brrr brtc bruc brug brut btaa btcc btcl btla btrc btrt bttb bual buar buat buba bubb bubu buca bucc bucu buga bugg bula bulb bulg bull bult bulu bur- bura burb burg burl burr burt buru but- buta butt caaa caab caac caal caat caba cabg cabu cac- caca cacc cacr caga cagg cagr cala calc call calt calu cara carb carc carl carr cart cat- cata catb catc catt catu cauc caul caut cbac cbal cbar cbat cbbc cbca cbcc cbcl cbcr cbct cbcu cbga cbgb cblb cblc cbrl cbrt cbta cbtc cbtl ccaa ccab ccac ccag ccar ccat ccba ccbc ccca cccb cccc cccl cccu ccga ccgc ccgt ccla cclc cclg ccra ccrc ccrg ccrl ccrt cctb cctc cctl cctt ccuc ccut cgac cgal cgcc cgcg cgtl cgtu clab clag clar clat clau clra cltb cltc club clut crab crac crag crar crat crau crbc crbu crca crcc crcr crrt crtc crtl crub crug crut ctab ctag ctal ctba ctca ctgu ctlg ctrc ctrl ctta cuau cub- cuba cubb cuca cucc cuga cula culb culc cull cult cura curb curl curr curt cut- cuta cutc cutt gaal gaar gaba gabb gabl gabr gabt gabu gaga gagg gagu gala