-ana aaaa aaab aaan aaar aaas aaba aabb aabt aana aaon aaoo aara aaro aars aart aasa aass aast aata aatt abaa abab aban abar abas abat abb- abba abbb abbo abbr abbs abbt aboa abob abon aboo abor abos abot abra abro abrs abs- absa abss abta abts ana- anaa anab anan anao anar anas anat anba anbb anbo anna annb anno anns annt ano- anoa anon anor anos ansa anso ant- anta anto antr ants antt aoba aonb aono aont aora aorb aorn aors aort aoss arab aran arar aras arat arba arbs arna arno arns arnt aroa arob aron aroo aror aros arr- arra arro arrr arrs arrt ars- arsa arso arst arta arto artr arts asaa asab asan asao asar asas asat asba asbo asno asob ason asor asos asot asra asro asrs assa assn asso assr asss asst asta astb asto astr asts at-t ataa atab atan atar atas atat atbs atna atno atns atob aton ator atos atot atra atrn atro atsb atst atta attn atto attr atts baaa baan baar baas baat baba babb babo babr babs bana bann bano banr bans bant baon baos bar- bara barb barn baro barr bars bart basa baso bass bast bata batn bato bats batt bbas bbbb bbbs bnas bnor bnrr bnss bnta boab boan boar boas boat boba bobb bobo bobs bona bonn bono bons bont boob boon boor boos boot bor- bora born boro borr bors bort bosa bosn boso boss bost bota botb botn boto bots bott brab bran brao bras brat brna brno brns broa brob bron broo bror bros brot brrr brrs brsb brsr brst bsaa bsas bsat bsns bson bsos bsra bsts btaa btan btob btor btrt btss bttb naaa naab naan naar naas naat naba nabo nabs nan- nana nanb nann nano nans nant naor naos naot nara narn naro narr nars nart nas- nasa nasb naso nasr nass nast nata nato nats natt nbaa nbar nbas nbbo nnnn nnos nnot nnsa nnss nntn noaa noat noba nobo nobs non- nona nonn nono nons nont noo- noob noon nooo noor noos noot nor- nora norb norn noro norr nors nort nos- nosa noss nost not- nota noto nots nott nrab nras nrna nron nrsa nrta nrts nsaa nsar nsbo nsna nsnr nsos nsra nssa nssb nsso nssr nsss nsts ntsb ntss ntto nttr oara oars oass oast oats oban obas obba obbo obon obor obos obot obra obro obsn obsr obss obst obts onab onan onar onas onat onna onno onon onor onos onra onso onst ont- onto ooaa ooba oona oons oont oooo ooos oora oort oosa oost ootb oots orab oran orao orar oras orat orba orbb orbo orbs orna orno orns oro- oron oror oros orot orra orro orrs orsa orso orta orto orts osan osar osas osat osba osno osnr osoo osor osos osro ossa ossb osso osta ostr osts otan otar otas otbs oto- oton otoo otor otos otra otro otrs otsa otso otta otto otts raab raan raas raat raba rabb rabo rabs rana rann rano rans rant raob raos rara rarb raro rars rasa raso rass rast rata rato rats ratt rbbb rbbr rbbs rbss rbst rnas rnbr rnnt rnot roab roan roar roas roat rob- roba robb robo robs robt rona rono rons ront roob roon roor roos root rora roro rort rosa roso ross rost rota rotn roto rotr rots rott rras rrat rrna rrrr rsaa rsna rsnn rsno rsnr rsos rssa rsts rtan rtas rtns rtss rtts s-os saab saan saar saas saat saba sabb sabo sabr sabs sana sann sano sanr sans sant saon saor saos sara sarn saro sarr sars sart sasa saso sass sast sata satb satn sato satr sats satt sbaa sbar sbas sbbs sbor sbot sbsa sbst sbtn snab snar snas snat snba snns snoa snob snoo snor snos snot snra snrs sntr soan soar soas soat soba sobo sobr sobs sobt son- sona sono sons sont soon soor soos soot sora sorb sorn soro sorr sors sort sosa soso soss sost sota sotn soto sots sras srna srnn srno sros srta srtr ssaa ssab ssan ssao ssas ssat ssbn ssbr ssns ssot ssra ssrs sssa sssb ssss ssta sstb ssts stab stan star stas stat stbs stnn stnr stns stoa stob ston stoo stor stos stot stra strn stro strs stss sttr taa- taan taar taas taat taba tabb tabo tabs tana tann tano tans tant taoa taor taos tara tarb tarn taro tarr tars tart tasa tasb tasr tass tast tata tatb tato tatr tats tatt tbar tbas tbbs tbrb tbst tbta tnts toab toan toas toat toba tobo tobs tobt tona tonb tonn tono tons tooa toon toor toos toot tora torn toro torr tors tort tosa tosb toso toss tost tota toto totr tots tott traa trab tran trao tras trat trna trno troa tron troo tros trot trra trst trtr tsaa tsao tsar tsat tsna tsob tsos tssa tssr tsst tsts ttab ttbb tton ttss tttt