-al -ol a-a a-b a-c aaa aab aac aal aan aao aar aau ab- aba abb abc abl abn abo abr abu ac- aca acb acc acl acn aco acr acu al- ala alb alc all aln alo alr alu an- ana anb anc anl ann ano anr anu aoa aob aoc aol aon aoo aor aou ar- ara arb arc arl arn aro arr aru au- aua aub auc aul aun auo aur b-u baa bab bac bal ban bao bar bau bba bbb bbc bbl bbn bbo bbr bbu bca bcb bcc bcl bcn bco bcr bcu bla blb blc bll bln blo blr blu bna bnb bnc bnl bnn bno bnr bnu boa bob boc bol bon boo bor bou bra brb brl brn bro brr bru bua bub buc bul bun buo bur buu c-- caa cab cac cal can cao car cau cba cbb cbc cbl cbn cbo cbr cbu cca ccb ccc ccl ccn cco ccr ccu cl- cla clb clc cll cln clo clr clu cn- cna cnb cnc cnl cnn cno cnr cnu co- coa cob coc col con coo cor cou cra crb crc crl crn cro crr cru cua cub cuc cul cun cuo cur cuu la- laa lab lac lal lan lao lar lau lba lbb lbc lbl lbo lbr lbu lca lcb lcc lcl lcn lco lcr lcu lla llb llc lll lln llo llr llu lna lnb lnc lnl lnn lno lnr lnu loa lob loc lol lon loo lor lou lra lrb lrc lrn lro lrr lru lua lub luc lul lun luo lur luu naa nab nac nal nan nao nar nau nba nbb nbc nbl nbn nbo nbr nbu nca ncb ncc ncl ncn nco ncr ncu nla nlb nlc nll nln nlo nlr nlu nna nnb nnc nnl nnn nno nnu no- noa nob noc nol non noo nor nou nra nrb nrc nrl nrn nro nrr nru nua nub nuc nul nun nuo nur nuu oaa oab oac oal oan oao oar oau ob- oba obb obc obl obn obo obr obu oc- oca ocb occ ocl ocn oco ocr ocu ola olb olc oll oln olo olu on- ona onb onc onl onn ono onr onu oo- ooa oob ooc ool oon ooo oor or- ora orb orc orl orn oro orr oru ou- oua ouc oul oun ouo our ra- raa rab rac ral ran rao rar rau rba rbb rbc rbl rbn rbo rbr rbu rca rcb rcc rcl rcn rco rcr rcu rla rlc rll rln rlo rlr rlu rna rnb rnc rnn rno rnr rnu roa rob roc rol ron roo ror rou rra rrb rrc rrl rrn rrr rru rua rub ruc run ruo rur ruu ua- uaa uab uac ual uan uao uar uau uba ubb ubc ubl ubn ubo ubr ubu uca ucb ucc ucl ucn uco ucr ucu ula ulb ulc ull uln ulo ulr ulu un- una unb unc unl unn uno unr unu uoa uob uoc uol uon uoo uor ur- ura urb urc url urn uro urr uru uua uuc uun uur uuu

-ana a-un aaaa aaab aaac aaal aaan aaar aaba aabb aabc aabl aaca aacb aacc aacl aacn aaco aacr aacu aala aalc aall aalo aalu aana aaon aaoo aara aarc aaro aaru abaa abab abac abal aban abar abau abb- abba abbb abbo abbr abca abcb abcc abcl abcn abcr abla ablo abnu aboa abob abol abon aboo abor abou abra abrc abro abua abul abun acaa acab acac acan acar acba acbl acca accc acco accu acla aclc aclr aclu acoa acol acon acor acou acr- acra acrc acro acrr acu- acul acuo acur alaa alac alal alan alao alar alau alb- alba albc albo albu alca alcc alco all- alla alll alln allo allr allu alna aloa aloc alol alon aloo alor alou alro alua alun alur ana- anaa anab anac anal anan anao anar anau anba anbb anbl anbo anbu anca ancc anco anla anlc anln anlo anlu anna annb anno ano- anoa anon anor anrc anua anub anul anun aoba aoca aola aonb aono aora aorb aorn aoul aoun arab arac aral aran arar arau arba arc- arca arco arla arlo arna arno aroa arob aron aroo aror arr- arra arrc arro arrr arru arua arub arul arun auaa auca aul- aula aull auln aulo aulu auna auol aur- aura auro baaa baal baan baar baba babb babo babr babu bac- baca bacc bacn baco bala balc ball balo balu bana banc bann bano banr banu baol baon bar- bara barb barc barn baro barr baru bau- baul baur bbau bbbb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcnu bcor bcra bcru bcuc blaa blab blac blan blau blcu blno blob bloc blon bloo blou blrc blub blur bnoc bnor bnrr boab boac boal boan boar boba bobb bobo bobu boca boco bocu bola boll boln bolo bolu bona bonc bonn bono bonu boob booc bool boon boor bor- bora born boro borr boru boua boul boun bour brab brac bran brao brau brca brcb brna brno broa brob broc brol bron broo bror brou brrr bruc brun bual buar buba bubb bubo bubu buca bucc buco bucu bula bulb bull bulu buna bunb bunn buno bunu buol buon bur- bura burb burl burn buro burr buru c-bo caaa caab caac caal caan caba cabo cabu cac- caca cacc caco cacr cala calc call calo calu cana canc cann cano caol caor cara carb carc carl carn caro carr cauc caul cauo cbac cbal cbar cbbc cbca cbcc cbcl cbcn cbcr cbcu cblb cblc cbln cbna cbol cbrl cbrn ccaa ccab ccac ccar ccba ccbc ccbn ccca cccb cccc cccl cccu ccla cclc ccna ccnb ccnc ccnr ccnu ccob ccoc ccra ccrc ccrl ccuc clab clan clar clau clob clon cloo clor clou clra clro club clun cnaa cnac cnbc cnbl cnco cnna cnrc cnrr coal coan coba cobb cobo cobu coca