a-a a-b a-c a-t aaa aab aac aan aao aar aat aau aav ab- aba abb abc abn abo abr abt abu abv ac- aca acb acc acn aco acr act acu acv an- ana anb anc ann ano anr ant anu anv aoa aob aoc aon aoo aor aot aou aov ar- ara arb arc arn aro arr art aru arv at- ata atb atc atn ato atr att atu atv au- aua aub auc aun auo aur aut auv av- ava avb avc avn avo avr avt avu b-u baa bab bac ban bao bar bat bau bav bba bbb bbc bbn bbo bbr bbt bbu bca bcb bcc bcn bco bcr bct bcu bcv bna bnb bnc bnn bno bnr bnt bnu bnv boa bob boc bon boo bor bot bou bov bra brb brn bro brr brt bru brv bta btb btc btn bto btr btt btu btv bua bub buc bun buo bur but buu bva bvb bvc bvn bvo bvr bvt bvu bvv c-- caa cab cac can cao car cat cau cav cba cbb cbc cbn cbo cbr cbt cbu cbv cca ccb ccc ccn cco ccr cct ccu ccv cn- cna cnb cnc cnn cno cnr cnt cnu cnv co- coa cob coc con coo cor cot cou cov cra crb crc crn cro crr crt cru crv cta ctb ctc ctn cto ctr ctt ctu ctv cua cub cuc cun cuo cur cut cuu cuv cva cvb cvc cvn cvo cvr cvt cvu cvv naa nab nac nan nao nar nat nau nav nba nbb nbc nbn nbo nbr nbt nbu nbv nca ncb ncc ncn nco ncr nct ncu ncv nna nnb nnc nnn nno nnt nnu nnv no- noa nob noc non noo nor not nou nov nra nrb nrc nrn nro nrr nrt nru nrv nta ntb ntc ntn nto ntr ntt ntu ntv nua nub nuc nun nuo nur nut nuu nuv nva nvb nvc nvn nvt nvu nvv oaa oab oac oan oao oar oat oau oav ob- oba obb obc obn obo obr obt obu obv oc- oca ocb occ ocn oco ocr oct ocu ocv on- ona onb onc onn ono onr ont onu oo- ooa oob ooc oon ooo oor oot oov or- ora orb orc orn oro orr ort oru orv ot- ota otb otc otn oto otr ott otu otv ou- oua ouc oun ouo our out ov- ova ovb ovc ovo ovv ra- raa rab rac ran rao rar rat rau rav rba rbb rbc rbn rbo rbr rbt rbu rca rcb rcc rcn rco rcr rct rcu rcv rna rnb rnc rnn rno rnr rnt rnu rnv roa rob roc ron roo ror rot rou rov rra rrb rrc rrn rrr rrt rru rta rtb rtc rtn rto rtr rtt rtu rtv rua rub ruc run ruo rur rut ruu ruv rva rvb rvc rvn rvo rvr rvt rvu rvv taa tab tac tan tao tar tat tau tav tba tbb tbc tbn tbo tbr tbt tbu tbv tca tcb tcc tcn tco tcr tct tcu tcv tna tnb tnc tnn tno tnr tnt to- toa tob toc ton too tor tot tou tov tra trb trc trn tro trr trt tru trv tta ttb ttc ttn tto ttr ttt ttu ttv tua tub tuc tun tuo tur tut tuu tuv tva tvb tvc tvn tvo tvr tvt tvu ua- uaa uab uac uan uao uar uat uau uav uba ubb ubc ubn ubo ubr ubt ubu ubv uca ucb ucc ucn uco ucr uct ucu ucv un- una unb unc unn uno unr unt unu unv uoa uob uoc uon uoo uor uot ur- ura urb urc urn uro urr urt uru uta utb utc utn uto utr utt utu utv uua uuc uun uur uut uuu uva uvb uvc uvo uvu uvv v-a vaa vab vac van vao var vat vau vav vba vbc vbo vbr vbv vca vcc vcn vco vcr vct vcu vn- vna vno vnr vnu vnv voa vob voc von voo vor vot vou vov vra vrb vrc vrn vrr vrt vru vta vtb vtc vto vtr vtt vtu vtv vur vut vuv vva vvb vvc vvo vvr vvt vvv

-ana -vac a-un aaaa aaab aaac aaan aaar aaav aaba aabb aabc aabt aaca aacb aacc aacn aaco aacr aact aacu aacv aana aaon aaoo aara aarc aaro aart aaru aata aatc aatt aava abaa abab abac aban abar abat abau abb- abba abbb abbo abbr abbt abca abcb abcc abcn abcr abct abnu aboa abob abon aboo abor abot abou abov abra abrc abro abta abtu abua abun abut abva ac-t acaa acab acac acan acar acat acba acca accc acco acct accu acoa acon acor acot acou acr- acra acrc acro acrr acrv acta actc acto actt actu actv acu- acuo acur acut acvv ana- anaa anab anac anan anao anar anat anau anba anbb anbo anbu anca ancc anco anct anna annb anno annt ano- anoa anon anor anrc ant- anta anto antr antt antu antv anua anub anun anut aoba aoca aonb aono aont aora aorb aorn aort aotc aoun aout arab arac aran arar arat arau arba arc- arca arco arct arna arno arnt aroa arob aron aroo aror arr- arra arrc arro arrr arrt arru arta artc arto artr artv arua arub arun arut arva arvn arvo at-t ataa atab atac atan atar atat atca atcc atco atcr atna atno atob atoc aton ator atot atra atrc atrn atro atru atta attn atto attr attu atua atub atuc atun atur auaa auca auct auna aunt aur- aura auro aut- auto avab avan avao avar avat avcc avco avon avor avot avou avra avro avun avur avva avvo baaa baan baar baat baba babb babo babr babu bac- baca bacc bacn baco bact bana banc bann bano banr bant banu baon bar- bara barb barc barn baro barr bart baru bata batc batn bato batt batu bau- baur