a-a a-b a-t aaa aab aad aaf aam aao aar aat ab- aba abb abd abf abm abo abr abt ad- ada adb add adf adm ado adr adt af- afa afb afd aff afm afo afr aft ama amb amd amf amm amo amr amt aoa aob aod aof aom aoo aor aot ar- ara arb ard arf arm aro arr art at- ata atb atd atf atm ato atr att baa bab bad baf bam bao bar bat bba bbb bbd bbf bbm bbo bbr bbt bda bdb bdd bdf bdm bdo bdr bdt bfa bfb bfd bff bfm bfo bfr bft bma bmb bmd bmf bmm bmo bmr bmt boa bob bod bof bom boo bor bot bra brb brd brf brm bro brr brt bta btb btd btf btm bto btr btt daa dab dad daf dam dao dar dat dba dbb dbd dbf dbm dbo dbr dbt dda ddb ddd ddf ddm ddo ddr ddt dfa dfb dfd dff dfm dfo dfr dft dma dmb dmd dmf dmm dmo dmr dmt doa dob dod dof dom doo dor dot dra drb drd drm dro drr drt dta dtb dtd dtf dtm dto dtr dtt faa fab fad faf fam fao far fat fba fbb fbd fbf fbm fbo fbr fbt fda fdb fdd fdf fdm fdo fdr fdt ffa ffd fff ffm ffo ffr fft fma fmb fmd fmf fmm fmo fmr fmt foa fob fof fom foo for fot fra frb frd frf frm fro frr frt fta ftb ftd ftf ftm fto ftr ftt m-f m-o m-r maa mab mad maf mam mao mar mat mba mbb mbd mbf mbm mbo mbr mbt mda mdb mdd mdf mdm mdo mdr mdt mfa mfb mfd mff mfm mfo mfr mft mma mmb mmd mmf mmm mmo mmr mmt moa mob mod mof mom moo mor mot mra mrb mrd mrf mrm mro mrr mrt mta mtb mtd mtf mtm mto mtr mtt oaa oab oad oaf oam oao oar oat ob- oba obb obd obf obm obo obr obt oda odb odd odf odm odo odr odt of- ofa ofb ofd off ofm ofo ofr oft om- oma omb omd omf omm omo omr omt oo- ooa oob ood oof oom ooo oor oot or- ora orb ord orf orm oro orr ort ot- ota otb otd otf otm oto otr ott ra- raa rab rad raf ram rao rar rat rba rbb rbd rbf rbm rbo rbr rbt rda rdb rdd rdf rdm rdo rdr rdt rfa rfb rfd rff rfm rfo rfr rft rma rmb rmd rmf rmm rmo rmr rmt roa rob rod rof rom roo ror rot rra rrb rrd rrf rrm rrr rrt rta rtb rtd rtf rtm rto rtr rtt taa tab tad taf tam tao tar tat tba tbb tbd tbf tbm tbo tbr tbt tda tdb tdd tdf tdm tdo tdr tdt tfa tfb tfd tff tfm tfo tfr tft tma tmb tmd tmf tmm tmo tmr tmt to- toa tob tod tof tom too tor tot tra trb trd trf trm tro trr trt tta ttb ttd ttf ttm tto ttr ttt

a-do aaaa aaab aaad aaaf aaam aaar aaba aabb aabd aabm aabt aada aadt aafa aafb aafd aaff aama aamb aamd aamo aamr aaoo aara aard aarm aaro aart aata aatf aatt abaa abab abad abaf abam abar abat abb- abba abbb abbo abbr abbt abda abdo abff abma abmb abmt aboa abob abod abof aboo abor abot abra abro abta adaa adab adad adam adao adar adat adba adda addd addo addr adfa adma admb admr adob adod adoo ador adot adra adro adta afaa afad afam afao afar afat afdb affa affo afft afma afoa afoo afor afr- afra afrm afro afta amaa amad amam amar amat amb- amba ambo ambr amda amdo amdt amfm amfr amm- amma ammo amob amod amof amoo amor amot amra amro amta amto aoba aoma aora aorb aort aotd aotf arab arad araf aram arar arat arba arda ardf ardm ardo arfa arfb arff arft arma armd armm armo armt aroa arob arod arom aroo aror arr- arra arro arrr arrt arta arto artr at-t ataa atab atad atar atat atdt atfb atm- atma atmo atob atod atof atom ator atot atra atrm atro atta atto attr baaa baad baaf baam baar baat baba babb babm babo babr bada badb badd bado badr baff bafo baft bama bamb bamf bamm bar- bara barb bard barf barm baro barr bart bata batf bato batt bbad bbbb bbdd bbdo bd-r bdrm bfta bftt bmaa bmdb boab boad boar boat boba bobb bobo boda bodb bodo bofa bofd boff boma bomb bomt boob bood boof boom boor boot bor- bora bord borf borm boro borr bort bota botb botd boto bott brab brad braf bram brao brat brda brdm brdo brdt brfm broa brob brod brom broo bror brot brrm brrr btaa btaf btdt btob btor btrt bttb d-bo daab daad daam daar daba dabb dabo dabt dada dado dafa daff dafo daft dama damb damm damo dara darb dard darf daro darr dart data dato datr datt dbar dbfo dbtt dddd ddot dfaf dfdt dffa dfma dfrf dftr dmaa dmab dmba dmbf dmdt dmfa dmft dmrb dmtf doab doar doat doba dobb dod- doda dodd dodo doff doma domb domm domo doob dood doof doom door doot dora dord dorf dorm doro dorr dort dota dotd doto dott draa drab drad draf dram drar drat drba drda drob drod drof drom drot drra dtaa dtor dtot faaa faad faam faba fabd fabm fabo fada fadd fado fafa faff fafo fama famo fara farb fard farm faro farr fart fata fatf fato fatt fbar fbom fdoa fdom fdot ffar ffff ffrr fftf fmod foad foaf foam foar foba fobt foda fofo foma fomo fomt food foof foom foot for- fora forb ford form foro forr fort fota fotm foto fott frab frad fram frat frob from frot frta