a-a a-b a-t aaa aab aam aao aar aas aat aax ab- aba abb abm abo abr abs abt abx ama amb amm amo amr ams amt amx aoa aob aom aoo aor aos aot aox ar- ara arb arm aro arr ars art arx as- asa asb asm aso asr ass ast asx at- ata atb atm ato atr ats att atx ax- axa axm axo axr axs axt axx baa bab bam bao bar bas bat bax bba bbb bbm bbo bbr bbs bbt bbx bma bmb bmm bmo bmr bms bmt bmx boa bob bom boo bor bos bot box bra brb brm bro brr brs brt brx bsa bsb bsm bso bsr bss bst bsx bta btb btm bto btr bts btt btx bxb bxm bxo bxx m-o m-r maa mab mam mao mar mas mat max mba mbb mbm mbo mbr mbs mbt mbx mma mmb mmm mmo mmr mms mmt mmx moa mob mom moo mor mos mot mox mra mrb mrm mro mrr mrs mrt mrx msa msb msm mso msr mss mst msx mta mtb mtm mto mtr mts mtt mtx mxa mxr mxs oaa oab oam oao oar oas oat oax ob- oba obb obm obo obr obs obt obx om- oma omb omm omo omr oms omt omx oo- ooa oob oom ooo oor oos oot oox or- ora orb orm oro orr ors ort orx os- osa osb osm oso osr oss ost osx ot- ota otb otm oto otr ots ott ox- oxa oxb oxo oxt oxx ra- raa rab ram rao rar ras rat rax rba rbb rbm rbo rbr rbs rbt rbx rma rmb rmm rmo rmr rms rmt rmx roa rob rom roo ror ros rot rox rra rrb rrm rrr rrs rrt rsa rsb rsm rso rsr rss rst rsx rta rtb rtm rto rtr rts rtt rtx rxr rxs saa sab sam sao sar sas sat sax sba sbb sbm sbo sbr sbs sbt sbx sma smb smm smo smr sms smt smx soa sob som soo sor sos sot sox sr- sra srb srm sro srr srs srt srx ss- ssa ssb ssm sso ssr sss sst ssx sta stb stm sto str sts stt stx sxm sxs sxt t-x taa tab tam tao tar tas tat tax tba tbb tbm tbo tbr tbs tbt tma tmb tmm tmo tmr tms tmt tmx to- toa tob tom too tor tos tot tox tra trb trm tro trr trs trt trx tsa tsb tsm tso tsr tss tst tsx tta ttb ttm tto ttr tts ttt ttx txs txt xaa xam xar xas xat xbr xbx xma xmm xmo xmr xms xmt xmx xoa xom xoo xor xos xot xox xrt xrx xsa xsb xsm xss xst xtm xtr xts xtx xxo xxx

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 abax abb- abba abbb abbo abbr abbs abbt abma abmb abms abmt aboa abob aboo abor abos abot abox abra abro abrs abs- absa abss abta abts amaa amam amar amas amat amax amb- amba ambo ambr ambs ambx 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 arax 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 artx asaa asab asam asao asar asas asat asba asbm asbo asma asmm asmr asms asmt asmx asob asom asor asos asot asra asrm asro asrs assa asso assr asss asst asta astb astm asto astr asts at-t at-x ataa atab atar atas atat atax atbs atm- atma atmo atms atob atom ator atos atot atra atrm atro atrx atsb atst atta atto attr atts axar axat axo- axoa axos axto axxo ba-x baaa baam baar baas baat baba babb babm babo babr babs bama bamb bamm bams baos bar- bara barb barm baro barr bars bart barx basa baso bass bast bata bato bats batt baxt bbas bbbb bbbs bbox bmaa bmts boab boar boas boat boba bobb bobo bobs boma bomb boms bomt boob boom boor boos boot boox bor- bora borm boro borr bors bort bosa bosm boso boss bost bota botb boto bots bott boxa brab bram brao bras brat brax broa brob brom broo bror bros brot brox 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 marx masa masr mass mast mata mato matr mats matt maxx mbam mbas mbba mbbs mbms mbox mbrs mbta mmaa mmab mmar mmas mmmm mmms mmor mmst mmts mmxx 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 moxa moxo 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 obox obra obro obsr obss obst obts omam omao omar omas ombo omma omo- omoa omoo omor omox 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