-vac aaaa aaab aaac aaar aaas aaav aaba aabb aabc aabt aaca aacb aacc aaco aacr aacs aact aacv aaoo aara aarc aaro aars aart aasa aasc aass aast aata aatc aatt aava abaa abab abac abar abas abat abb- abba abbb abbo abbr abbs abbt abca abcb abcc abcr abcs abct aboa abob aboo abor abos abot abov abra abrc abro abrs abs- absa abss abta abts abva ac-t acaa acab acac acar acas acat acba acca accc acco accs acct acoa acor acos acot acr- acra acrc acro acrr acrs acrv acsa acsc acss acst acta actc acto acts actt actv acvs acvv aoba aoca aocs aora aorb aors aort aoss aotc arab arac arar aras arat arba arbs arc- arca arco arcs arct aroa arob aroo aror aros arr- arra arrc arro arrr arrs arrt ars- arsa arsc arso arst arta artc arto artr arts artv arva arvo asaa asab asac asao asar asas asat asba asbo asc- asca ascb ascc asco ascr asct asob asoc asor asos asot asra asrc asro asrs assa assc asso assr asss asst asta astb astc asto astr asts astv asva asvs at-t ataa atab atac atar atas atat atbs atca atcc atco atcr atcs atob atoc ator atos atot atra atrc atro atsb atsc atst atta atto attr atts atvs avab avao avar avas avat avcc avco avor avos avot avra avro avst avva avvo baaa baar baas baat baba babb babo babr babs bac- baca bacc baco bacs bact baos bar- bara barb barc baro barr bars bart basa basc baso bass bast bata batc bato bats batt bava bbas bbbb bbbs bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccs bcor bcos bcra bcrs bcsa bcsc bcss bctc bcts bcvo boab boac boar boas boat boba bobb bobo bobs boca boco bocs boob booc boor boos boot bor- bora boro borr bors bort bosa bosc boso boss bost bota botb boto bots bott bova bovo brab brac brao bras brat brav brca brcb broa brob broc broo bror bros brot brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bscs bsos bsra bssc bsts bstv btaa btcc btcs btob btor btrc btrt btss bttb bvsc c-bo caaa caab caac caas caat caba cabo cabs cac- caca cacc caco cacr caor caos cara carb carc caro carr cars cart casa casb casc caso casr cass cast cat- cata catb catc cato cats catt catv cava cavo cavs cbac cbar cbat cbbc cbbs cbca cbcc cbcr cbcs cbct cbot cbrt cbsa cbsc cbta cbtc cbtv cbva cbvb cbvr ccaa ccab ccac ccar ccas ccat ccba ccbc ccca cccb cccc cccs cccv ccob ccoc ccra ccrc ccrs ccrt ccsa ccss ccst cctb cctc cctt cctv ccvo ccvs coas coat coba cobb cobo cobs coca coco coct coob coos coot cor- cora corb corc coro corr cors cort cosa cosc coso coss cost cota cotb cotc coto cots cott cova covo crab crac crar cras crat crbc crca crcc crcr crob croc croo cror crot crrt crsa crss crst crtc crts crtv csaa csab csac csao csar csas csat csav cscb cscc csco cscr cscs csob csor csos csot csra csrc csrs cssa cssr csta cstc csto cstr csts ctab ctba ctbs ctca ctor ctos ctot ctrc ctrs ctsa ctsc ctss ctta ctts ctvo ctvt cvac cvar cvas cvbs cvca cvcc cvra cvrr cvss oara oars oasc oass oast oats oavs obas obba obbo obor obos obot obra obro obsr obss obst obts obvs ocab ocac ocas ocat ocbc occa occc occt ocos ocra ocro ocrr ocrs ocsa oct- octa octo octs ooaa ooba oocr oooo ooos oora oort oosa oost ootb oots orab orac orao orar oras orat orav orba orbb orbo orbs orca orco orcs oro- oror oros orot orra orro orrs orsa orso orta ortc orto orts orvr orvs osar osas osat osba osca oscc osco osoo osor osos osov osro ossa ossb osso osta ostc ostr osts otac otar otas otbs oto- otoo otor otos otov otra otro otrs otsa otso otta otto otts ovar ovcs ovo- ovoo ovot ovra raab raas raat raba rabb rabo rabs rac- raca racc raco racs ract racv raob raoc raos rara rarb raro rars rasa rasc raso rass rast rata rato rats ratt rava rbbb rbbr rbbs rbss rbst rcac rcas rcbc rcbo rccb rccc rccs rcos rcsa rcsc rcss rctc rcts rctv rcvr rcvs roab roar roas roat rob- roba robb robo robs robt roca rocc roco rocs roob roor roos root rora rorc roro rort rosa rosc roso ross rost rota rotc roto rotr rots rott rova rovo rovs rras rrat rrrr rsaa rscc rscs rsos rssa rsts rtas rtca rtcc rtss rtts rtva rv-c rvca s-os s-vt sa-c saab saac saar saas saat saba sabb sabc sabo sabr sabs saca sacc saco sacr sacs sact saor saos sara sarc saro sarr sars sart sarv sasa sasc saso sass sast sata satb satc sato satr sats satt sava savo savs sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbct sbor sbot sbsa sbst sbtc scaa scab scac scar scas scat scba sccc sccs scct scob scoo scor scot scr- scra scrc scrs scsa scsc scso scsr scst sctc scto sctr scts sctv soar soas soat soba sobo sobr sobs sobt soca soco socr socs soor soos soot sora sorb soro sorr sors sort sosa soso soss sost sosv sota sotc soto sots sova sovo sovs sras srbc srcc srct sros srta srtr srtv ssaa ssab ssac ssao ssas ssat ssbr ssca sscc sscs ssoc ssot ssra ssrc ssrs sssa sssb sssc ssss ssta sstb sstc ssts st-v stab stac star stas stat stbc stbs stca stcc stcs stoa stob stoo stor stos stot stra strc stro strs stss sttc sttr stvs svar svcc svcs svor svsc svtr taa- taar taas taat taba tabb tabc tabo tabs taca tacc taco tacs tact tacv taoa taor taos tara tarb tarc taro tarr tars tart tasa tasb tasc tasr tass