-ana aaaa aaab aaac aaan aaar aaas aaba aabb aabc aaca aacb aacc aacn aaco aacr aacs aana aang aaon aaoo aara aarc aaro aars aasa aasc aass abaa abab abac abag aban abar abas abb- abba abbb abbo abbr abbs abca abcb abcc abcn abcr abcs aboa abob abon aboo abor abos abra abrc abro abrs abs- absa abss acaa acab acac acag acan acar acas acba acca accc acco accs acga acgr acgs acoa acog acon acor acos acr- acra acrc acro acrr acrs acsa acsc acss ag-o agac agag agan agao agar agas agba agbo agca agcc agco agga agna agno agns agob agog agon agoo agos agra agro agsa agsg ana- anaa anab anac anag anan anao anar anas anba anbb anbo anca ancc anco ang- anga ango angs anna annb anno anns ano- anoa anon anor anos anrc ansa anso aoba aoca aocs aonb aono aora aorb aorn aors aoss arab arac arag aran arar aras arba arbs arc- arca arco arcs arga argb argo args arna arng arno arns aroa arob aron aroo aror aros arr- arra arrc arrg arro arrr arrs ars- arsa arsc arso asaa asab asac asag asan asao asar asas asba asbo asc- asca ascb ascc asco ascr asnc asno asob asoc asog ason asor asos asra asrc asrg asro asrs assa assc assn asso assr asss baaa baan baar baas baba babb babo babr babs bac- baca bacc bacn baco bacs baga bagg bagn bago bags bana banc bang bann bano banr bans baon baos bar- bara barb barc barg barn baro barr bars basa basc baso bass bbas bbbb bbbs bbga bbng bbrc bbrg bcaa bcar bcas bcbc bcbg bcbs bcca bccc bccs bcgs bcor bcos bcra bcrs bcsa bcsc bcsn bcss bgan bgca bggs bgon bnas bnoc bnor bnrr bnss boab boac boag boan boar boas boba bobb bobo bobs boca boco bocs boga bogg bogo bogs bona bonc bong bonn bono bons boob booc boog boon boor boos bor- bora borg born boro borr bors bosa bosc bosn boso boss brab brac brag bran brao bras brca brcb brna brno brns broa brob broc brog bron broo bror bros brrr brrs brsb brsr bsaa bsac bsas bscs bsgs bsns bson bsos bsra bssc c-bo caaa caab caac caan caas caba cabg cabo cabs cac- caca cacc caco cacr caga cagg cagn cago cagr cags cana canc cang cann cano cans caor caos cara carb carc carn caro carr cars casa casb casc caso casr cass cbac cbar cbbc cbbs cbca cbcc cbcn cbcr cbcs cbga cbgb cbna cbrn cbsa cbsc cbsn ccaa ccab ccac ccag ccar ccas ccba ccbc ccbn ccca cccb cccc cccs ccga ccgc ccgs ccna ccnb ccnc ccnr ccns ccob ccoc ccra ccrc ccrg ccrs ccsa ccsg ccsn ccss cgac cgas cgcc cgcg cggs cgns cgro cgsb cgss cnaa cnac cnag cnas cnbc cnco cnna cnrc cnrr cnsa cnss coag coan coas coba cobb cobo cobs coca coco cogo cogs con- cona conc cong conn cono cons coob coon coos cor- cora corb corc corg corn coro corr cors cosa cosc coso coss crab crac crag cran crar cras crbc crca crcc crcr crgs crna crns crob croc cron croo cror crsa crss csaa csab csac csao csar csas cscb cscc csco cscr cscs csgn csob csor csos csra csrc csrs cssa cssr gaar gaas gaba gabb gabo gabr gabs gaga gagg gago gags gana ganc gang gann gano gans gaon gaos gara garb garg garn garo garr gars gasa gasb gasc gaso gasr gass gbag gban gbas gbbo gbbs gbon gc-c gcaa gcbc gccc gccs gcna gcoa gcos gcrg gcss gggg ggrn ggss gnaa gnac gnar gnas gncc gngc gnoo gnrc gnrr goan goar goas goba gobo gobs goca gocr goga gogo gogs gon- gona gong gonn gono gons goog goon goor goos gora gorb gorg gorn goro gorr gors goso goss grab grac gran gras grbr grcc grob groc grog gron groo gror gros grrr grrs grss gsab gsoc gson gsos naaa naab naac naag naan naar naas naba nabc nabo nabs naca nacc naco nacs naga nagc nago nags nan- nana nanb nang nann nano nans naoc naor naos nara narc narg narn naro narr nars nas- nasa nasb nasc naso nasr nass nbaa nbar nbas nbbc nbbo nbca nbcc nbco nbcs ncaa ncac ncar ncba ncbc ncbs ncca nccc nccn nccr nccs ncga ncgr ncgs ncna ncnc ncoa ncoc ncor ncos ncra ncrc ncsa ncsc ncss ngab ngac ngan ngao ngas ngns ngon ngor ngos ngsn nngn nnnn nnos nnsa nnss noaa noac noba nobc nobo nobs noco nocs noga nogg nogo nogs non- nona nong nonn nono nons noo- noob noon nooo noor noos nor- nora norb norc norg norn noro norr nors nos- nosa noss nrab nras nrca nrcs nrna nroc nron nrrc nrsa nrsc nsaa nsac nsar nsbo nsca nscc nscs nsna nsnr nsos nsra nsrc nssa nssb nssc nsso nssr nsss oara oars oasc oass oban obas obba obbo obon obor obos obra obro obsn obsr obss ocab ocac ocan ocas ocbc occa occc occn ocga ocna ocon ocos ocra ocro ocrr ocrs ocsa ogar ogb ogba ogna ogoa ogog ogon ogra ogro onab onan onar onas onc- onca onco onga ongo onna onno onon onor onos onra onsc onso ooaa ooba oocr oona oons oooo ooos oora oosa orab orac oran orao orar oras orba orbb orbo orbs orca orco orcs orga orgn orgo orgs orna ornc orno orns oro- oron oror oros orra orro orrs orsa orso osag osan osar osas osba osca oscc osco osno osnr osoo osor osos osro ossa ossb osso raab raag raan raas raba rabb rabo rabs rac- raca racc raco racs raga ragg rago rags rana ranc rang rann rano rans raob raoc raos rara rarb raro rars rasa rasc raso rass rbbb rbbr rbbs rbss rcac rcas rcbc rcbo rccb rccc rccs rcga rcgc rcnr rcon rcos rcrg rcsa rcsc rcss rgan rgba rnag rnas rnbr