a-a a-b a-t aaa aab aad aaf aao aar aat ab- aba abb abd abf abo abr abt ad- ada adb add adf ado adr adt af- afa afb afd aff afo afr aft aoa aob aod aof aoo aor aot ar- ara arb ard arf aro arr art at- ata atb atd atf ato atr att baa bab bad baf bao bar bat bba bbb bbd bbf bbo bbr bbt bda bdb bdd bdf bdo bdr bdt bfa bfb bfd bff bfo bfr bft boa bob bod bof boo bor bot bra brb brd brf bro brr brt bta btb btd btf bto btr btt daa dab dad daf dao dar dat dba dbb dbd dbf dbo dbr dbt dda ddb ddd ddf ddo ddr ddt dfa dfb dfd dff dfo dfr dft doa dob dod dof doo dor dot dra drb drd dro drr drt dta dtb dtd dtf dto dtr dtt faa fab fad faf fao far fat fba fbb fbd fbf fbo fbr fbt fda fdb fdd fdf fdo fdr fdt ffa ffd fff ffo ffr fft foa fob fof foo for fot fra frb frd frf fro frr frt fta ftb ftd ftf fto ftr ftt oaa oab oad oaf oao oar oat ob- oba obb obd obf obo obr obt oda odb odd odf odo odr odt of- ofa ofb ofd off ofo ofr oft oo- ooa oob ood oof ooo oor oot or- ora orb ord orf oro orr ort ot- ota otb otd otf oto otr ott ra- raa rab rad raf rao rar rat rba rbb rbd rbf rbo rbr rbt rda rdb rdd rdf rdo rdr rdt rfa rfb rfd rff rfo rfr rft roa rob rod rof roo ror rot rra rrb rrd rrf rrr rrt rta rtb rtd rtf rto rtr rtt taa tab tad taf tao tar tat tba tbb tbd tbf tbo tbr tbt tda tdb tdd tdf tdo tdr tdt tfa tfb tfd tff tfo tfr tft to- toa tob tod tof too tor tot tra trb trd trf tro trr trt tta ttb ttd ttf tto ttr ttt

a-do aaaa aaab aaad aaaf aaar aaba aabb aabd aabt aada aadt aafa aafb aafd aaff aaoo aara aard aaro aart aata aatf aatt abaa abab abad abaf abar abat abb- abba abbb abbo abbr abbt abda abdo abff aboa abob abod abof aboo abor abot abra abro abta adaa adab adad adao adar adat adba adda addd addo addr adfa adob adod adoo ador adot adra adro adta afaa afad afao afar afat afdb affa affo afft afoa afoo afor afr- afra afro afta aoba aora aorb aort aotd aotf arab arad araf arar arat arba arda ardf ardo arfa arfb arff arft aroa arob arod aroo aror arr- arra arro arrr arrt arta arto artr at-t ataa atab atad atar atat atdt atfb atob atod atof ator atot atra atro atta atto attr baaa baad baaf baar baat baba babb babo babr bada badb badd bado badr baff bafo baft bar- bara barb bard barf baro barr bart bata batf bato batt bbad bbbb bbdd bbdo bd-r bfta bftt boab boad boar boat boba bobb bobo boda bodb bodo bofa bofd boff boob bood boof boor boot bor- bora bord borf boro borr bort bota botb botd boto bott brab brad braf brao brat brda brdo brdt broa brob brod broo bror brot brrr btaa btaf btdt btob btor btrt bttb d-bo daab daad daar daba dabb dabo dabt dada dado dafa daff dafo daft dara darb dard darf daro darr dart data dato datr datt dbar dbfo dbtt dddd ddot dfaf dfdt dffa dfrf dftr doab doar doat doba dobb dod- doda dodd dodo doff doob dood doof door doot dora dord dorf doro dorr dort dota dotd doto dott draa drab drad draf drar drat drba drda drob drod drof drot drra dtaa dtor dtot faaa faad faba fabd fabo fada fadd fado fafa faff fafo fara farb fard faro farr fart fata fatf fato fatt fbar fdoa fdot ffar ffff ffrr fftf foad foaf foar foba fobt foda fofo food foof foot for- fora forb ford foro forr fort fota foto fott frab frad frat frob frot frta oafo oara obad obba obbo obdt obor obot obra obro obtd odbo odda oddd odoo odor odot odra ofdr off- offa offo offr ofor ofra ofta ooaa ooba ooda ooff oooo oora oord oort ootb orab orad orao orar orat orba orbb orbo orda ordo orff oro- orof oror orot orra orro orta orto otar otbd oto- otof otoo otor otra otro otta otto raab raad raaf raat raba rabb rabo rada radd rado radr radt rafa raff raft raob rara rarb rarf raro rata ratf rato ratt rbaf rbbb rbbr rdfa roab road roaf roar roat rob- roba robb robo robt roda rodd rodo roff rofo roob rood roof roor root rora roro rort rota roto rotr rott rrad rrat rrrr rtbf rtdt rtfb taa- taaf taar taat taba tabb tabo tada tado tafa taff tafo taft taoa taor tara tarb tard tarf taro tarr tart tata tatb tato tatr tatt tbaf tbar tbrb tbta tddb tdff tdor tdra tfot toab toad toat toba tobo tobt toda todd todo todt tofa toff tofo toft tooa tood toof toor toot tora tord torf toro torr tort tota totd toto totr tott traa trab trad traf trao trat trfd trfr troa trod troo trot trra trtr ttab ttbb ttfa ttff tttt

-aaa- -abad aaata aabaa aabba aabra aadat aafat abaab ababa abada abaft abara abbad abbar abbat abbod abbot abfab aboab aboad aboat abobo abood aboot abora abord abort abott abrad abrar abrod abtaa abtaf abtao abtar adaba adada adado adara adaro adata adato adbot addra addto adoar adobo adodb adoor adora adorf adoro adrad adrar adroa afara affor afoot afro- afrob aftab aftar aftra aort- aorta ar-ab araat arab- araba arabo arada arado arafo araft arara arata arbab arbar arbat arbor arbot ardab