a-a a-b a-t aaa aab aam aao aar aas aat ab- aba abb abm abo abr abs abt ama amb amm amo amr ams amt aoa aob aom aoo aor aos aot ar- ara arb arm aro arr ars art as- asa asb asm aso asr ass ast at- ata atb atm ato atr ats att baa bab bam bao bar bas bat bba bbb bbm bbo bbr bbs bbt bma bmb bmm bmo bmr bms bmt boa bob bom boo bor bos bot bra brb brm bro brr brs brt bsa bsb bsm bso bsr bss bst bta btb btm bto btr bts btt m-o m-r maa mab mam mao mar mas mat mba mbb mbm mbo mbr mbs mbt mma mmb mmm mmo mmr mms mmt moa mob mom moo mor mos mot mra mrb mrm mro mrr mrs mrt msa msb msm mso msr mss mst mta mtb mtm mto mtr mts mtt oaa oab oam oao oar oas oat ob- oba obb obm obo obr obs obt om- oma omb omm omo omr oms omt oo- ooa oob oom ooo oor oos oot or- ora orb orm oro orr ors ort os- osa osb osm oso osr oss ost ot- ota otb otm oto otr ots ott ra- raa rab ram rao rar ras rat rba rbb rbm rbo rbr rbs rbt rma rmb rmm rmo rmr rms rmt roa rob rom roo ror ros rot rra rrb rrm rrr rrs rrt rsa rsb rsm rso rsr rss rst rta rtb rtm rto rtr rts rtt saa sab sam sao sar sas sat sba sbb sbm sbo sbr sbs sbt sma smb smm smo smr sms smt soa sob som soo sor sos sot sr- sra srb srm sro srr srs srt ss- ssa ssb ssm sso ssr sss sst sta stb stm sto str sts stt taa tab tam tao tar tas tat tba tbb tbm tbo tbr tbs tbt tma tmb tmm tmo tmr tms tmt to- toa tob tom too tor tos tot tra trb trm tro trr trs trt tsa tsb tsm tso tsr tss tst tta ttb ttm tto ttr tts ttt

aaaa aaab aaam aaar aaas aaba aabb aabm aabt aama aamb aamo aamr aams aaoo aara aarm aaro aars aart aasa aasm aass aast aata aatt abaa abab abam abar abas abat abb- abba abbb abbo abbr abbs abbt abma abmb abms abmt aboa abob aboo abor abos abot abra abro abrs abs- absa abss abta abts amaa amam amar amas amat amb- amba ambo ambr ambs amm- amma ammo amob amoo amor amos amot amra amro amsa amso amss amst amta amto amts aoba aoma aora aorb aors aort aoss arab aram arar aras arat arba arbs arma armm armo arms armt aroa arob arom aroo aror aros arr- arra arro arrr arrs arrt ars- arsa arso arst arta arto artr arts asaa asab asam asao asar asas asat asba asbm asbo asma asmm asmr asms asmt asob asom asor asos asot asra asrm asro asrs assa asso assr asss asst asta astb astm asto astr asts at-t ataa atab atar atas atat atbs atm- atma atmo atms atob atom ator atos atot atra atrm atro atsb atst atta atto attr atts baaa baam baar baas baat baba babb babm babo babr babs bama bamb bamm bams baos bar- bara barb barm baro barr bars bart basa baso bass bast bata bato bats batt bbas bbbb bbbs bmaa bmts boab boar boas boat boba bobb bobo bobs boma bomb boms bomt boob boom boor boos boot bor- bora borm boro borr bors bort bosa bosm boso boss bost bota botb boto bots bott brab bram brao bras brat broa brob brom broo bror bros brot brrm brrr brrs brsb brsr brst bsaa bsam bsas bsat bsms bsmt bsos bsra bsrm bssm bsts btaa btob btor btrt btss bttb maaa maam maar maas maat maba mabo mabs mama mamo mams maor maos mar- mara marm maro marr mars mart masa masr mass mast mata mato matr mats matt mbam mbas mbba mbbs mbms mbrs mbta mmaa mmab mmar mmas mmmm mmms mmor mmst mmts moaa moab moam moar moas moat moba mobb mobo mobs moma momo moms mooa moob moor moos moot mora morb moro mors mort mosa moso moss most mota motb motm moto mots mott mras mrbb mrbm mrbs mrsa mrta mrtm mrts mrtt msaa msar msas msat msba msma msmb msmm msms msoa msor msra msrb msrt mssa mssm mssr msst msta mstr msts mtaa mtab mtas mtbo mtbs mtoa mtom mtor mtrr mtsa mtss mtst mttr mtts oama oams oara oars oass oast oats obas obba obbo obor obos obot obra obro obsr obss obst obts omam omao omar omas ombo omma omo- omoa omoo omor omra omro omsa ooaa ooba ooma ooms oooo ooos oora oort oosa oost ootb oots orab oram orao orar oras orat orba orbb orbo orbs orma ormo oro- orom oror oros orot orra orro orrs orsa orso orta orto orts osam osar osas osat osba osm- osmo osoo osor osos osro ossa ossb osso osta ostr osts otar otas otbs otma oto- otoo otor otos otra otro otrs otsa otso otta otto otts raab raam raas raat raba rabb rabo rabs rama ramb ramm ramo rams raob raom raos rara rarb raro rars rasa rasm raso rass rast rata rato rats ratt rbbb rbbr rbbs rbms rbss rbst rmas rmbs rmst roab roam roar roas roat rob- roba robb robo robs robt roma romb romm romo roms roob room roor roos root rora roro rort rosa roso ross rost rota roto rotr rots rott rras rrat rrrr rsaa rsma rsos rssa rsts rtas rtms rtss rtts s-os saab saam saar saas saat saba sabb sabo sabr sabs sam- sama samm samo sams samt saor saos sara sarm saro sarr sars sart sasa sasm saso sass sast sata satb sato satr sats satt sbaa sbar sbas sbbs sbma sbor sbot