a-a a-b aaa aab aad aaf aan aao aar ab- aba abb abd abf abn abo abr ad- ada adb add adf adn ado adr af- afa afb afd aff afn afo afr an- ana anb and anf ann ano anr aoa aob aod aof aon aoo aor ar- ara arb ard arf arn aro arr baa bab bad baf ban bao bar bba bbb bbd bbf bbn bbo bbr bda bdb bdd bdf bdo bdr bfa bfb bfd bff bfn bfo bfr bna bnb bnd bnf bnn bno bnr boa bob bod bof bon boo bor bra brb brd brf brn bro brr daa dab dad daf dan dao dar dba dbb dbd dbf dbn dbo dbr dda ddb ddd ddf ddn ddo ddr dfa dfb dfd dff dfn dfo dfr dna dnb dnd dnf dnn dno dnr doa dob dod dof don doo dor dra drb drd drn dro drr faa fab fad faf fan fao far fba fbb fbd fbf fbn fbo fbr fda fdb fdd fdf fdn fdo fdr ffa ffd fff ffn ffo ffr fna fnb fnd fnf fnn fnr foa fob fof fon foo for fra frb frd frf frn fro frr naa nab nad naf nan nao nar nba nbb nbd nbf nbn nbo nbr nda ndb ndd ndf ndn ndo ndr nfa nfb nfd nff nfn nfo nfr nna nnb nnf nnn nno no- noa nob nod nof non noo nor nra nrb nrd nrf nrn nro nrr oaa oab oad oaf oan oao oar ob- oba obb obd obf obn obo obr oda odb odd odf odn odo odr of- ofa ofb ofd off ofn ofo ofr on- ona onb ond onf onn ono onr oo- ooa oob ood oof oon ooo oor or- ora orb ord orf orn oro orr ra- raa rab rad raf ran rao rar rba rbb rbd rbf rbn rbo rbr rda rdb rdd rdf rdn rdo rdr rfa rfb rfd rff rfn rfo rfr rna rnb rnd rnn rno rnr roa rob rod rof ron roo ror rra rrb rrd rrf rrn rrr

-ana a-do aaaa aaab aaad aaaf aaan aaar aaba aabb aabd aada aafa aafb aafd aaff aana aand aaon aaoo aara aard aaro abaa abab abad abaf aban abar abb- abba abbb abbo abbr abda abdo abff aboa abob abod abof abon aboo abor abra abro adaa adab adad adan adao adar adba adda addd addn addo addr adfa adna adob adod adon adoo ador adra adro afaa afad afan afao afar afdb affa affo afoa afoo afor afr- afra afro ana- anaa anab anad anan anao anar anba anbb anbo and- anda ando andr anfa anfo anna annb anno ano- anoa anod anon anor aoba aonb aono aora aorb aorn arab arad araf aran arar arba arda ardf ardo arfa arfb arff arna arnd arno aroa arob arod aron aroo aror arr- arra arro arrr baaa baad baaf baan baar baba babb babo babr bada badb badd bado badr baff bafo bana band bann bano banr baon bar- bara barb bard barf barn baro barr bbad bbbb bbdd bbdo bbfn bd-r bdna bnor bnrr boab boad boan boar boba bobb bobo boda bodb bodo bofa bofd boff bona bond bonn bono boob bood boof boon boor bor- bora bord borf born boro borr brab brad braf bran brao brda brdo brna brno broa brob brod bron broo bror brrr d-bo d-na daab daad daan daar daba dabb dabo dada dado dafa daff dafo dana dand dann dano danr daon dara darb dard darf darn daro darr dbar dbfo dbrn dddd dfaf dffa dfrf dnaa dnab dnad dnan doab doan doar doba dobb dod- doda dodd dodo doff dona dond donn dono donr doob dood doof doon door dora dord dorf dorn doro dorr draa drab drad draf drar drba drda drna drno drob drod drof dron drra faaa faad faan faba fabd fabo fada fadd fado fafa faff fafo fana fand fano faon fara farb fard faro farr fbar fdoa ffar ffff ffrr fnar fndd fndn fndr foad foaf foan foar foba foda fofo fond fono food foof foon for- fora forb ford forn foro forr frab frad fran frob fron naaa naab naad naan naar naba nabf nabo nada nadf nadr nafa naff nafo nan- nana nanb nand nann nano naor nara nard narf narn naro narr nbaa nbad nbaf nbar nbbo nbfa ndaa ndao nddb nddo ndfa ndna ndor ndrf nfaa nfda nfff nfon nfra nndb nnnn noaa noba nobo noda nodo non- nona nonn nono noo- noob noon nooo noor nor- nora norb nord norf norn noro norr nrab nrna nron nrrd oafo oara obad oban obba obbo obon obor obra obro odbo odda oddd odnb odon odoo odor odra ofan ofdr off- offa offo offr ofna ofno ofor ofra onab onan onar onda ondo onna onno onod onon onor onra ooaa ooba ooda ooff oona oooo oora oord orab orad oran orao orar orba orbb orbo orda ordn ordo orff orna orno oro- orof oron oror orra orro raab raad raaf raan raba rabb rabo rada radd rado radr rafa raff rana rand rann rano raob rara rarb rarf raro rbaf rbbb rbbr rdfa rdna rnaf rnbr rndf rnod roab road roaf roan roar rob- roba robb robo roda rodd rodo roff rofo rona rond rono roob rood roof roon roor rora roro rrad rrna rrrr

-aaa- -abad a-dna aabaa aabba aabra aandr aarna aaron abaab ababa abada abana aband abann abano abaon abara abarn abbad abban abbar abbod abdan abdon abfab aboab aboad abobo abona abond abono abood aboon abora abord aborn abrad abran abrar abrod abron adaba adada adado adana adano adaon adara adarn adaro addon addra adnan adoar adobo adodb adona adoor adora adorf adorn adoro adrad adran adrar adroa afand afara affor afnan afnor afond afono afro- afrob anaba anado anana anand anara anban anbar andab andad andan andar andno andoa andon andor andr- andra andro annan annar anoba anoda anona anono anoon