a-a a-b a-t aaa aab aad aao aar aat ab- aba abb abd abo abr abt ad- ada adb add ado adr adt aoa aob aod aoo aor aot ar- ara arb ard aro arr art at- ata atb atd ato atr att baa bab bad bao bar bat bba bbb bbd bbo bbr bbt bda bdb bdd bdo bdr bdt boa bob bod boo bor bot bra brb brd bro brr brt bta btb btd bto btr btt daa dab dad dao dar dat dba dbb dbd dbo dbr dbt dda ddb ddd ddo ddr ddt doa dob dod doo dor dot dra drb drd dro drr drt dta dtb dtd dto dtr dtt oaa oab oad oao oar oat ob- oba obb obd obo obr obt oda odb odd odo odr odt oo- ooa oob ood ooo oor oot or- ora orb ord oro orr ort ot- ota otb otd oto otr ott ra- raa rab rad rao rar rat rba rbb rbd rbo rbr rbt rda rdb rdd rdo rdr rdt roa rob rod roo ror rot rra rrb rrd rrr rrt rta rtb rtd rto rtr rtt taa tab tad tao tar tat tba tbb tbd tbo tbr tbt tda tdb tdd tdo tdr tdt to- toa tob tod too tor tot tra trb trd tro trr trt tta ttb ttd tto ttr ttt

a-do aaaa aaab aaad aaar aaba aabb aabd aabt aada aadt aaoo aara aard aaro aart aata aatt abaa abab abad abar abat abb- abba abbb abbo abbr abbt abda abdo aboa abob abod aboo abor abot abra abro abta adaa adab adad adao adar adat adba adda addd addo addr adob adod adoo ador adot adra adro adta aoba aora aorb aort aotd arab arad arar arat arba arda ardo aroa arob arod aroo aror arr- arra arro arrr arrt arta arto artr at-t ataa atab atad atar atat atdt atob atod ator atot atra atro atta atto attr baaa baad baar baat baba babb babo babr bada badb badd bado badr bar- bara barb bard baro barr bart bata bato batt bbad bbbb bbdd bbdo bd-r boab boad boar boat boba bobb bobo boda bodb bodo boob bood boor boot bor- bora bord boro borr bort bota botb botd boto bott brab brad brao brat brda brdo brdt broa brob brod broo bror brot brrr btaa btdt btob btor btrt bttb d-bo daab daad daar daba dabb dabo dabt dada dado dara darb dard daro darr dart data dato datr datt dbar dbtt dddd ddot doab doar doat doba dobb dod- doda dodd dodo doob dood door doot dora dord doro dorr dort dota dotd doto dott draa drab drad drar drat drba drda drob drod drot drra dtaa dtor dtot oara obad obba obbo obdt obor obot obra obro obtd odbo odda oddd odoo odor odot odra ooaa ooba ooda oooo oora oord oort ootb orab orad orao orar orat orba orbb orbo orda ordo oro- oror orot orra orro orta orto otar otbd oto- otoo otor otra otro otta otto raab raad raat raba rabb rabo rada radd rado radr radt raob rara rarb raro rata rato ratt rbbb rbbr roab road roar roat rob- roba robb robo robt roda rodd rodo roob rood roor root rora roro rort rota roto rotr rott rrad rrat rrrr rtdt taa- taar taat taba tabb tabo tada tado taoa taor tara tarb tard taro tarr tart tata tatb tato tatr tatt tbar tbrb tbta tddb tdor tdra toab toad toat toba tobo tobt toda todd todo todt tooa tood toor toot tora tord toro torr tort tota totd toto totr tott traa trab trad trao trat troa trod troo trot trra trtr ttab ttbb tttt

-aaa- -abad aaata aabaa aabba aabra aadat abaab ababa abada abara abbad abbar abbat abbod abbot aboab aboad aboat abobo abood aboot abora abord abort abott abrad abrar abrod abtaa abtao abtar adaba adada adado adara adaro adata adato adbot addra addto adoar adobo adodb adoor adora adoro adrad adrar adroa aort- aorta ar-ab araat arab- araba arabo arada arado arara arata arbab arbar arbat arbor arbot ardab ardod ardor ardra aroab aroad aroar aroba aroor aroot arora artar artat arto- artoo artot atara atbar atbat atoad atoot atora atoto atrab atro- atroa atrot attar atto- attra baard baart baata babar babdo baboo babot babra badao badar badat baddo badod badoo badot badra badto baoro baraa barab barad barao barar barat barba barda bardo baro- baroa baroo baror barot barra barro barta barto batab batad batar batat batob batoo bator batra batta batto bbart bdoor bdort bo-bo boada board boaro boart bobar bobr bodd- bodor booat booba boora boord boort boota borat borba borbo borda bordo boro- boroa borod boroo borot borra borro botad botar botro botta braat brada bradt brard bratt brdda broad brobo broda brodd brodo brood brora broto brrar brrrr btr-d btr-t d-a-d d-dot d-rad d-rod daada daara daata dabar dabat dabba dabra dadao dadar dadda daddo dadoo dadra daraa darab darba darda dardo darod daroo darra darro datar datta datto ddddd do-do doaba doado dobra dobro dodab dodad dodoo dodro dooab dooar doodo doora dorab dorad dorat dordt dorot dorra dotoa dotoo dotto draba drbob drobo drood drott o-r-b oaror obaba obara obata obodo obora oboro obrab obrad obrat odaba odara oddba odtaa ooooo oraba orara orato orbad orbot ordro orobo orodo ortoo otara otard otdoa otoba ototo otrar ottar ra-ra raaba raaor raard rabab rabad rabat rabba rabda rabor rabot rabta radar ratba ratot ratra ratta ratto rboat ro-ro roadb robab robar robat robbo robo- robor robot robrt rodat rodbo rodda rodor rooba roota rorra rota- rotar rotda roto- rotoa rotor rotot rotta rotto t-ara t-bar ta-da ta-ra ta-ta taabo taart tabar tabat tabda tabo- taboo tabor tabot tabra tadao tarar tarat tarda tardo tarob taroo tarot tarra tarro tarta tartt tataa tatao tatar tatoo tator tatra tatta tatto tbtbt to-do toado tobar tobat tobor tobot todad todor todra toora toord