-al -ol a-a a-b a-c a-t aaa aab aac aal aao aar aat aau ab- aba abb abc abl abo abr abt abu ac- aca acb acc acl aco acr act acu al- ala alb alc all alo alr alt alu aoa aob aoc aol aoo aor aot aou ar- ara arb arc arl aro arr art aru at- ata atb atc atl ato atr att atu au- aua aub auc aul auo aur aut b-u baa bab bac bal bao bar bat bau bba bbb bbc bbl bbo bbr bbt bbu bca bcb bcc bcl bco bcr bct bcu bla blb blc bll blo blr blt blu boa bob boc bol boo bor bot bou bra brb brl bro brr brt bru bta btb btc btl bto btr btt btu bua bub buc bul buo bur but buu c-- caa cab cac cal cao car cat cau cba cbb cbc cbl cbo cbr cbt cbu cca ccb ccc ccl cco ccr cct ccu cl- cla clb clc cll clo clr clt clu co- coa cob coc col coo cor cot cou cra crb crc crl cro crr crt cru cta ctb ctc ctl cto ctr ctt ctu cua cub cuc cul cuo cur cut cuu la- laa lab lac lal lao lar lat lau lba lbb lbc lbl lbo lbr lbt lbu lca lcb lcc lcl lco lcr lct lcu lla llb llc lll llo llr llt llu loa lob loc lol loo lor lot lou lra lrb lrc lro lrr lrt lru lta ltb ltc ltl lto ltr ltt ltu lua lub luc lul luo lur lut luu oaa oab oac oal oao oar oat oau ob- oba obb obc obl obo obr obt obu oc- oca ocb occ ocl oco ocr oct ocu ola olb olc oll olo olt olu oo- ooa oob ooc ool ooo oor oot or- ora orb orc orl oro orr ort oru ot- ota otb otc otl oto otr ott otu ou- oua ouc oul ouo our out ra- raa rab rac ral rao rar rat rau rba rbb rbc rbl rbo rbr rbt rbu rca rcb rcc rcl rco rcr rct rcu rla rlc rll rlo rlr rlt rlu roa rob roc rol roo ror rot rou rra rrb rrc rrl rrr rrt rru rta rtb rtc rtl rto rtr rtt rtu rua rub ruc ruo rur rut ruu taa tab tac tal tao tar tat tau tba tbb tbc tbl tbo tbr tbt tbu tca tcb tcc tcl tco tcr tct tcu tla tlc tll tlo tlr tlt tlu to- toa tob toc tol too tor tot tou tra trb trc trl tro trr trt tru tta ttb ttc ttl tto ttr ttt ttu tua tub tuc tul tuo tur tut tuu ua- uaa uab uac ual uao uar uat uau uba ubb ubc ubl ubo ubr ubt ubu uca ucb ucc ucl uco ucr uct ucu ula ulb ulc ull ulo ulr ult ulu uoa uob uoc uol uoo uor uot ur- ura urb urc url uro urr urt uru uta utb utc utl uto utr utt utu uua uuc uur uut uuu

aaaa aaab aaac aaal aaar aaba aabb aabc aabl aabt aaca aacb aacc aacl aaco aacr aact aacu aala aalc aall aalo aalu aaoo aara aarc aaro aart aaru aata aatc aatt abaa abab abac abal abar abat abau abb- abba abbb abbo abbr abbt abca abcb abcc abcl abcr abct abla ablo aboa abob abol aboo abor abot abou abra abrc abro abta abtu abua abul abut ac-t acaa acab acac acar acat acba acbl acca accc acco acct accu acla aclc aclr aclu acoa acol acor acot acou acr- acra acrc acro acrr acta actc actl acto actt actu acu- acul acuo acur acut alaa alac alal alao alar alat alau alb- alba albc albo albu alca alcc alco all- alla alll allo allr allu aloa aloc alol aloo alor alot alou alro alta alto alua alur alut aoba aoca aola aora aorb aort aotc aoul aout arab arac aral arar arat arau arba arc- arca arco arct arla arlo aroa arob aroo aror arr- arra arrc arro arrr arrt arru arta artc arto artr arua arub arul arut at-l at-t ataa atab atac atal atar atat atca atcc atcl atco atcr atla atlo atob atoc atol ator atot atra atrc atro atru atta atto attr attu atua atub atuc atul atur auaa auca auct aul- aula aull aulo ault aulu auol aur- aura auro aut- auto baaa baal baar baat baba babb babo babr babu bac- baca bacc baco bact bala balc ball balo balt balu baol bar- bara barb barc baro barr bart baru bata batc bato batt batu bau- baul baur bbau bbbb bblb bbrc bcaa bcar bcat bcbc bcca bccc bccl bcor bcra bcru bctc bcuc blaa blab blac blat blau blbt blcu blob bloc bloo blot blou blrc blub blur blut boab boac boal boar boat boba bobb bobo bobu boca boco bocu bola boll bolo bolt bolu boob booc bool boor boot bor- bora boro borr bort boru bota botb boto bott boua boul bour bout brab brac brao brat brau brca brcb broa brob broc brol broo bror brot brou brrr brtc bruc brut btaa btcc btcl btla btob btor btrc btrt bttb bual buar buat buba bubb bubo bubu buca bucc buco bucu bula bulb bull bult bulu buol bur- bura burb burl buro burr burt buru but- buta buto butt c-bo caaa caab caac caal caat caba cabo cabu cac- caca cacc caco cacr cala calc call calo calt calu caol caor cara carb carc carl caro carr cart cat- cata catb catc cato catt catu cauc caul cauo caut cbac cbal cbar cbat cbbc cbca cbcc cbcl cbcr cbct cbcu cblb cblc cbol cbot cbrl cbrt cbta cbtc cbtl ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc cccl cccu ccla cclc ccob ccoc ccra ccrc ccrl ccrt cctb cctc cctl cctt ccuc