-ous aaaa aaab aaac aaar aaas aaba aabb aabc aabt aaca aacb aacc aaco aacr aacs aact aacu aaoo aara aarc aaro aars aart aaru aasa aasc aass aast aasu aata aatc aatt aaus abaa abab abac abar abas abat abau abb- abba abbb abbo abbr abbs abbt abca abcb abcc abcr abcs abct aboa abob aboo abor abos abot abou abra abrc abro abrs abs- absa abss absu abta abts abtu abua abus abut ac-t acaa acab acac acar acas acat acba acca accc acco accs acct accu acoa acor acos acot acou acr- acra acrc acro acrr acrs acsa acsc acss acst acta actc acto acts actt actu acu- acuo acur acus acut aoba aoca aocs aora aorb aors aort aoss aotc aous aout arab arac arar aras arat arau arba arbs arc- arca arco arcs arct aroa arob aroo aror aros arr- arra arrc arro arrr arrs arrt arru ars- arsa arsc arso arst arsu arta artc arto artr arts arua arub arut asaa asab asac asao asar asas asat asau asba asbo asbu asc- asca ascb ascc asco ascr asct asob asoc asor asos asot asou asra asrc asro asrs asru assa assc asso assr asss asst assu asta astb astc asto astr asts asub asur asus at-t ataa atab atac atar atas atat atbs atca atcc atco atcr atcs atob atoc ator atos atot atra atrc atro atru atsb atsc atst atta atto attr atts attu atua atub atuc atur atus auaa auca auct aur- aura auro ausa aust ausu aut- auto auts baaa baar baas baat baba babb babo babr babs babu bac- baca bacc baco bacs bact baos bar- bara barb barc baro barr bars bart baru basa basc baso bass bast basu bata batc bato bats batt batu bau- baur bbas bbau bbbb bbbs bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccs bcor bcos bcra bcrs bcru bcsa bcsc bcss bctc bcts bcuc boab boac boar boas boat boba bobb bobo bobs bobu boca boco bocs bocu boob booc boor boos boot bor- bora boro borr bors bort boru bosa bosc boso boss bost bosu bota botb boto bots bott boua bour bous bout brab brac brao bras brat brau brca brcb broa brob broc broo bror bros brot brou brrr brrs brsb brsr brst brtc bruc brus brut bsaa bsac bsas bsat bscs bsos bsra bssc bsts btaa btcc btcs btob btor btrc btrt btss bttb btus buar buat buba bubb bubo bubs bubu buca bucc buco bucs bucu bur- bura burb buro burr burs burt buru busa busc buss bust busu but- buta buto buts butt buus c-bo caaa caab caac caas caat caba cabo cabs cabu cac- caca cacc caco cacr caor caos cara carb carc caro carr cars cart casa casb casc caso casr cass cast casu cat- cata catb catc cato cats catt catu cauc cauo caus caut cbac cbar cbat cbbc cbbs cbca cbcc cbcr cbcs cbct cbcu cbot cbrt cbsa cbsc cbta cbtc cbus ccaa ccab ccac ccar ccas ccat ccba ccbc ccca cccb cccc cccs cccu ccob ccoc ccra ccrc ccrs ccrt ccsa ccss ccst cctb cctc cctt ccuc ccus ccut coas coat coba cobb cobo cobs cobu coca coco coct cocu coob coos coot cor- cora corb corc coro corr cors cort cosa cosc coso coss cost cota cotb cotc coto cots cott cotu coua coub cour cous cout crab crac crar cras crat crau crbc crbu crca crcc crcr crob croc croo cror crot crrt crsa crss crst crtc crts crub crus crut csaa csab csac csao csar csas csat cscb cscc csco cscr cscs csob csor csos csot csra csrc csrs cssa cssr csta cstc csto cstr csts csua csur csus ctab ctba ctbs ctca ctor ctos ctot ctrc ctrs ctsa ctsc ctss ctsu ctta ctts cuau cub- cuba cubb cubs cuca cucc cura curb curo curr curs curt cusa cusb cuso cuss cust cusu cut- cuta cutc cuto cuts cutt oaau oara oars oasc oass oast oats obas obba obbo obor obos obot obra obro obsr obss obst obts obus ocab ocac ocas ocat ocbc occa occc occt ocos ocra ocro ocrr ocrs ocsa oct- octa octo octs ocur ooaa ooba oocr oooo ooos oora oort oosa oost ootb oots oous orab orac orao orar oras orat orba orbb orbo orbs orbu orca orco orcs oro- oror oros orot orra orro orrs orsa orso orsu orta ortc orto orts orub orus osar osas osat osba osca oscc osco osoo osor osos osro ossa ossb osso ossu osta ostc ostr osts otac otar otas otbs oto- otoo otor otos otra otro otrs otsa otso otsu otta otto otts ottu otur otus ouac ouat oubs oucc our- oura ouro ours ourt ousa oust out- outa outb outo outs ouu- raab raas raat raba rabb rabo rabs rabu rac- raca racc raco racs ract racu raob raoc raos rara rarb raro rars rasa rasc raso rass rast rasu rata rato rats ratt ratu raua raub rauc raus raut rbbb rbbr rbbs rbss rbst rcac rcas rcbc rcbo rccb rccc rccs rcos rcsa rcsc rcss rctc rcts roab roar roas roat rob- roba robb robo robs robt robu roca rocc roco rocs roob roor roos root rora rorc roro rort roru rosa rosc roso ross rost rota rotc roto rotr rots rott roua roub rous rout rras rrat rrrr rsaa rscc rscs rsos rssa rsts rstu rsua rtas rtca rtcc rtss rtts ruas ruba rubb rubs rubu ruca ruct rura rurc ruro rurs ruru rusa ruso russ rust rusu ruta ruto ruts rutt rutu s-os sa-c saab saac saar saas saat saba sabb sabc sabo sabr sabs sabu saca sacc saco sacr sacs sact sacu saor saos saou sara sarc saro sarr sars sart saru sasa sasc saso sass sast sata satb satc sato satr sats satt satu saua sauc saur saus saut sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbct sbor sbot sbsa sbst sbtc sbus scaa scab scac scar