-al -ol a-a a-b a-c aaa aab aac aak aal aao aar aau aav ab- aba abb abc abk abl abo abr abu abv ac- aca acb acc ack acl aco acr acu acv aka akb akc akk akl ako akr aku akv al- ala alb alc alk all alo alr alu alv aoa aob aoc aok aol aoo aor aou aov ar- ara arb arc ark arl aro arr aru arv au- aua aub auc auk aul auo aur auv av- ava avb avc avk avl avo avr avu b-u baa bab bac bak bal bao bar bau bav bba bbb bbc bbk bbl bbo bbr bbu bca bcb bcc bck bcl bco bcr bcu bcv bka bkb bkc bkk bkl bko bkr bkv bla blb blc blk bll blo blr blu blv boa bob boc bok bol boo bor bou bov bra brb brk brl bro brr bru brv bua bub buc buk bul buo bur buu bva bvb bvc bvk bvl bvo bvr bvu bvv c-- caa cab cac cak cal cao car cau cav cba cbb cbc cbk cbl cbo cbr cbu cbv cca ccb ccc cck ccl cco ccr ccu ccv cka ckb ckc cko cl- cla clb clc clk cll clo clr clu clv co- coa cob coc cok col coo cor cou cov cra crb crc crk crl cro crr cru crv cua cub cuc cuk cul cuo cur cuu cuv cva cvb cvc cvk cvl cvo cvr cvu cvv ka- kaa kab kac kak kal kao kar kau kav kba kbb kbc kbk kbl kbo kbr kbu kca kcb kcc kck kcl kcr kcu kkb kkc kkk kkl kkr kku kkv kl- kla klb klc klo klr klu klv koa kob koc kok kol koo kor kou kra krc krk krl kro krr kru krv kub kuc kuk kul kur kuu kva kvb kvk kvo kvr kvv la- laa lab lac lak lal lao lar lau lav lba lbb lbc lbk lbl lbo lbr lbu lbv lca lcb lcc lck lcl lco lcr lcu lcv lka lkb lkl lkr lla llb llc llk lll llo llr llu llv loa lob loc lok lol loo lor lou lov lra lrb lrc lrk lro lrr lru lrv lua lub luc luk lul luo lur luu luv lva lvb lvc lvl lvr lvv oaa oab oac oak oal oao oar oau oav ob- oba obb obc obk obl obo obr obu obv oc- oca ocb occ ock ocl oco ocr ocu ocv oka okb okc okk okl oko okr oku ola olb olc olk oll olo olu oo- ooa oob ooc ook ool ooo oor oov or- ora orb orc ork orl oro orr oru orv ou- oua ouc ouk oul ouo our ov- ova ovb ovc ovl ovo ovv ra- raa rab rac rak ral rao rar rau rav rba rbb rbc rbk rbl rbo rbr rbu rca rcb rcc rcl rco rcr rcu rcv rkb rkc rkk rko rku rkv rla rlc rll rlo rlr rlu roa rob roc rok rol roo ror rou rov rra rrb rrc rrk rrl rrr rru rua rub ruc ruk ruo rur ruu ruv rva rvb rvc rvl rvo rvr rvu rvv ua- uaa uab uac uak ual uao uar uau uav uba ubb ubc ubk ubl ubo ubr ubu ubv uca ucb ucc uck ucl uco ucr ucu ucv uka ukb ukc ukk ukl ukr uku ula ulb ulc ulk ull ulo ulr ulu ulv uoa uob uoc uok uol uoo uor ur- ura urb urc urk url uro urr uru uua uuc uur uuu uva uvb uvc uvl uvo uvu uvv v-a vaa vab vac vak val vao var vau vav vba vbc vbk vbl vbo vbr vbv vca vcc vcl vco vcr vcu vka vkb vl- vla vlb vlc vlk vll vlo vlv voa vob voc vok vol voo vor vou vov vra vrb vrc vrk vrr vru vuk vul vur vuv vva vvb vvc vvo vvr vvv

-vac a-ak a-ok aaaa aaab aaac aaal aaar aaav aaba aabb aabc aabl aaca aacb aacc aack aacl aaco aacr aacu aacv aaka aaku aala aalc aall aalo aalu aaoo aara aarc aaro aaru aava abaa abab abac abak abal abar abau abb- abba abbb abbo abbr abca abcb abcc abcl abcr abla ablo ablv aboa abob abok abol aboo abor abou abov abra abrc abro abua abuk abul abva acaa acab acac acar acba acbl acca accc acco accu acla aclc aclr aclu acoa acol acor acou acr- acra acrc acro acrr acrv acu- acul acuo acur acvv akaa akal akao akar akca akka akko akku aklo akok akr- akra akua alaa alac alak alal alao alar alau alb- alba albc albo albu alca alcc alco alk- alka alkb alko alku all- alla alll allo allr allu aloa aloc alok alol aloo alor alou alov alro alua aluk alur alva alvo aoba aoca aola aora aorb aoul arab arac arak aral arar arau arba arc- arca arco arka arko arla arlo aroa arob aroo aror arr- arra arrc arrk arro arrr arru arua arub arul arva arvo auaa auca aul- aula aull aulo aulu auol aur- aura auro avab aval avao avar avcc avco avlb avor avou avra avro avur avva avvo baaa baak baal baar baba babb babo babr babu bac- baca bacc back baco bak- baka bakl bako bakr baku bala balc balk ball balo balu baol bar- bara barb barc bark baro barr baru bau- bauk baul baur bava bavu bbau bbbb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcor bcra bcru bcuc bcvo blaa blab blac blak blau blcu blkb blob bloc blok bloo blou blrc blub blur boab boac boak boal boar boba bobb bobo bobu boca bock boco bocu boka boko boku bola bolk boll bolo bolu boob booc book bool boor bor- bora bork boro borr boru boua bouk boul bour bova bovo brab brac brak brao brau brav brca brcb brka brkb broa brob broc brok