a-a a-b aaa aab aad aan aao aar aax ab- aba abb abd abn abo abr abx ad- ada adb add adn ado adr adx an- ana anb and ann ano anr anx aoa aob aod aon aoo aor aox ar- ara arb ard arn aro arr arx ax- axa axn axo axr axx baa bab bad ban bao bar bax bba bbb bbd bbn bbo bbr bbx bda bdb bdd bdo bdr bdx bna bnb bnd bnn bno bnr bnx boa bob bod bon boo bor box bra brb brd brn bro brr brx bxb bxd bxn bxo bxx daa dab dad dan dao dar dax dba dbb dbd dbn dbo dbr dbx dda ddb ddd ddn ddo ddr ddx dna dnb dnd dnn dno dnr doa dob dod don doo dor dox dra drb drd drn dro drr drx dxd dxn dxo dxr dxx naa nab nad nan nao nar nax nba nbb nbd nbn nbo nbr nbx nda ndb ndd ndn ndo ndr nna nnb nnn nno no- noa nob nod non noo nor nox nra nrb nrd nrn nro nrr nrx nxd oaa oab oad oan oao oar oax ob- oba obb obd obn obo obr obx oda odb odd odn odo odr on- ona onb ond onn ono onr onx oo- ooa oob ood oon ooo oor oox or- ora orb ord orn oro orr orx ox- oxa oxb oxn oxo oxx ra- raa rab rad ran rao rar rax rba rbb rbd rbn rbo rbr rbx rda rdb rdd rdn rdo rdr rdx rna rnb rnd rnn rno rnr roa rob rod ron roo ror rox rra rrb rrd rrn rrr rxr xaa xad xan xar xbr xbx xda xdb xdr xna xno xoa xod xon xoo xor xox xrd xrx xxo xxx

-ana a-do aaaa aaab aaad aaan aaar aaba aabb aabd aada aana aand aaon aaoo aara aard aaro abaa abab abad aban abar abax abb- abba abbb abbo abbr abda abdo aboa abob abod abon aboo abor abox abra abro adaa adab adad adan adao adar adba adda addd addn addo addr adna adob adod adon adoo ador adox adra adro ana- anaa anab anad anan anao anar anax anba anbb anbo and- anda ando andr anna annb anno ano- anoa anod anon anor anox aoba aonb aono aora aorb aorn arab arad aran arar arax arba arda ardo arna arnd arno aroa arob arod aron aroo aror arr- arra arro arrr axan axar axo- axoa axon axxo ba-x baaa baad baan baar baba babb babo babr bada badb badd bado badr bana band bann bano banr baon bar- bara barb bard barn baro barr barx bbad bbbb bbdd bbdo bbox bd-r bdna bnor bnrr boab boad boan boar boba bobb bobo boda bodb bodo bona bond bonn bono boob bood boon boor boox bor- bora bord born boro borr boxa brab brad bran brao brax brda brdo brna brno broa brob brod bron broo bror brox brrr d-bo d-na daab daad daan daar daba dabb dabo dada dado dana dand dann dano danr daon dara darb dard darn daro darr dbar dbrn dddd dnaa dnab dnad dnan dnax do-x doab doan doar doba dobb dod- doda dodd dodo dona dond donn dono donr doob dood doon door dora dord dorn doro dorr doxa draa drab drad drar drax drba drda drna drno drob drod dron drra dxab dxbn dxbr dxdr dxnd dxra dxrd dxrr dxrx dxxr dxxx naaa naab naad naan naar naba nabo nada nadr nan- nana nanb nand nann nano naor nara nard narn naro narr narx nbaa nbad nbar nbbo ndaa ndao nddb nddo ndna ndor nndb nnnn noaa noba nobo noda nodo non- nona nonn nono nonx noo- noob noon nooo noor nor- nora norb nord norn noro norr noxa nrab nrna nron nrrd nxdn oara obad oban obba obbo obon obor obox obra obro odax odbo odda oddd odnb odon odoo odor odra onab onan onar onda ondo onna onno onod onon onor onra ooaa ooba ooda oona oooo oora oord orab orad oran orao orar orba orbb orbo orda ordn ordo orna orno oro- oron oror orra orro oxa- oxan oxna oxo- oxon oxox oxxo raab raad raan raba rabb rabo rada radd rado radr radx rana rand rann rano ranx raob rara rarb raro raxa rbbb rbbr rdna rnbr rnod roab road roan roar rob- roba robb robo roda rodd rodo rona rond rono roob rood roon roor roox rora roro roxa roxo rrad rrna rrrr xaar xado xana xand xano xara xbar xbox xbra xdna xoan xorn xoro xoxo xrdb xrod xxxo xxxx

-aaa- -abad a-box a-dna aabaa aabba aabra aandr aarna aaron abaab ababa abada abana aband abann abano abaon abara abarn abbad abban abbar abbod abdan abdon aboab aboad abobo abona abond abono abood aboon abora abord aborn abrad abran abrar abrod abron adaba adada adado adana adano adaon adaox adara adarn adaro addax addon addra adnan adoar adobo adodb adona adoor adora adorn adoro adoxa adrad adran adrar adroa anaba anado anana anand anara anaxo anban anbar andab andad andan andar andno andoa andon andor andr- andra andro annan annar annax anoba anoda anona anono anoon anora anorn anrax aodan ar-ab arab- araba arabo arada arado arana arand arano arara araxa arbab arbar arbon arbor ardab ardan ardod ardon ardor ardra arnad arnan arnar arno- arnod arnon arnor aroab aroad aroar aroba arona aroon aroor arora arran arron arxan axana axona b-dna baard baarn baban babar babax babdo baboo babra badan badao badar baddo badna badod badoo badra banan banar banba banda bandb bandn bando banna banon baoro bar-x baraa barab barad baran barao barar barba barda bardo barna baro- baroa baron baroo baror barra barro bdoor bo-bo boada boand boann boano board boaro boban bobar bobr bodd- bodor bonab bonan bonao bonar bonda bondo bonon bonox booba boond boora boord boorn boran borax borba borbo borda bordo born- borna borno boro- boroa borod boron boroo borox borra borro