a-a a-b a-t aaa aab aad aaf aan aao aar aat ab- aba abb abd abf abn abo abr abt ad- ada adb add adf adn ado adr adt af- afa afb afd aff afn afo afr aft an- ana anb and anf ann ano anr ant aoa aob aod aof aon aoo aor aot ar- ara arb ard arf arn aro arr art at- ata atb atd atf atn ato atr att baa bab bad baf ban bao bar bat bba bbb bbd bbf bbn bbo bbr bbt bda bdb bdd bdf bdo bdr bdt bfa bfb bfd bff bfn bfo bfr bft bna bnb bnd bnf bnn bno bnr bnt boa bob bod bof bon boo bor bot bra brb brd brf brn bro brr brt bta btb btd btf btn bto btr btt daa dab dad daf dan dao dar dat dba dbb dbd dbf dbn dbo dbr dbt dda ddb ddd ddf ddn ddo ddr ddt dfa dfb dfd dff dfn dfo dfr dft dna dnb dnd dnf dnn dno dnr dnt doa dob dod dof don doo dor dot dra drb drd drn dro drr drt dta dtb dtd dtf dtn dto dtr dtt faa fab fad faf fan fao far fat fba fbb fbd fbf fbn fbo fbr fbt fda fdb fdd fdf fdn fdo fdr fdt ffa ffd fff ffn ffo ffr fft fna fnb fnd fnf fnn fnr fnt foa fob fof fon foo for fot fra frb frd frf frn fro frr frt fta ftb ftd ftf ftn fto ftr ftt naa nab nad naf nan nao nar nat nba nbb nbd nbf nbn nbo nbr nbt nda ndb ndd ndf ndn ndo ndr ndt nfa nfb nfd nff nfn nfo nfr nft nna nnb nnf nnn nno nnt no- noa nob nod nof non noo nor not nra nrb nrd nrf nrn nro nrr nrt nta ntb ntd ntf ntn nto ntr ntt oaa oab oad oaf oan oao oar oat ob- oba obb obd obf obn obo obr obt oda odb odd odf odn odo odr odt of- ofa ofb ofd off ofn ofo ofr oft on- ona onb ond onf onn ono onr ont oo- ooa oob ood oof oon ooo oor oot or- ora orb ord orf orn oro orr ort ot- ota otb otd otf otn oto otr ott ra- raa rab rad raf ran rao rar rat rba rbb rbd rbf rbn rbo rbr rbt rda rdb rdd rdf rdn rdo rdr rdt rfa rfb rfd rff rfn rfo rfr rft rna rnb rnd rnn rno rnr rnt roa rob rod rof ron roo ror rot rra rrb rrd rrf rrn rrr rrt rta rtb rtd rtf rtn rto rtr rtt taa tab tad taf tan tao tar tat tba tbb tbd tbf tbn tbo tbr tbt tda tdb tdd tdf tdn tdo tdr tdt tfa tfb tfd tff tfn tfo tfr tft tna tnb tnd tnf tnn tno tnr tnt to- toa tob tod tof ton too tor tot tra trb trd trf trn tro trr trt tta ttb ttd ttf ttn tto ttr ttt

-ana a-do aaaa aaab aaad aaaf aaan aaar aaba aabb aabd aabt aada aadt aafa aafb aafd aaff aana aand aaon aaoo aara aard aaro aart aata aatf aatt abaa abab abad abaf aban abar abat abb- abba abbb abbo abbr abbt abda abdo abff aboa abob abod abof abon aboo abor abot abra abro abta adaa adab adad adan adao adar adat adba adda addd addn addo addr adfa adna adob adod adon adoo ador adot adra adro adta afaa afad afan afao afar afat afdb affa affo afft afoa afoo afor afr- afra afro afta aftn ana- anaa anab anad anan anao anar anat anba anbb anbo and- anda ando andr andt anfa anfo anna annb anno annt ano- anoa anod anon anor ant- anta anto antr antt aoba aonb aono aont aora aorb aorn aort aotd aotf arab arad araf aran arar arat arba arda ardf ardo arfa arfb arff arft arna arnd arno arnt aroa arob arod aron aroo aror arr- arra arro arrr arrt arta arto artr at-t ataa atab atad atan atar atat atdt atfb atna atno atob atod atof aton ator atot atra atrn atro atta attn atto attr baaa baad baaf baan baar baat baba babb babo babr bada badb badd bado badr baff bafo baft bana band bann bano banr bant baon bar- bara barb bard barf barn baro barr bart bata batf batn bato batt bbad bbbb bbdd bbdo bbfn bd-r bdna bfta bftt bnor bnrr bnta boab boad boan boar boat boba bobb bobo boda bodb bodo bofa bofd boff bona bond bonn bono bont boob bood boof boon boor boot bor- bora bord borf born boro borr bort bota botb botd botn boto bott brab brad braf bran brao brat brda brdo brdt brna brno broa brob brod bron broo bror brot brrr btaa btaf btan btdt btob btor btrt bttb d-bo d-na daab daad daan daar daba dabb dabo dabt dada dado dafa daff dafo daft dana dand dann dano danr dant daon dara darb dard darf darn daro darr dart data dato datr datt dbar dbfo dbrn dbtt dddd ddot dfaf dfdt dffa dfrf dftr dnaa dnab dnad dnan dnat dntt doab doan doar doat doba dobb dod- doda dodd dodo doff dona dond donn dono donr dont doob dood doof doon door doot dora dord dorf dorn doro dorr dort dota dotd doto dott draa drab drad draf drar drat drba drda drna drno drob drod drof dron drot drra dtaa dtna dtnb dtor dtot faaa faad faan faba fabd fabo fada fadd fado fafa faff fafo fana fand fano fant faon fara farb fard faro farr fart fata fatf fato fatt fbar fdoa fdot ffar ffff ffrr fftf fnar fndd fndn fndr fnta fntb foad foaf foan foar foba fobt foda fofo fond fono font food foof foon foot for- fora forb ford