-ana aaaa aaac aaan aaar aaas aaca aacc aacn aacr aacs aact aana aara aarc aars aart aasa aasc aass aast aata aatc aatt ac-t acaa acac acan acar acas acat acca accc accs acct acr- acra acrc acrr acrs acsa acsc acss acst acta actc acts actt ana- anaa anac anan anar anas anat anca ancc anct anna anns annt anrc ansa ant- anta antr ants antt arac aran arar aras arat arc- arca arcs arct arna arns arnt arr- arra arrc arrr arrs arrt ars- arsa arsc arst arta artc artr arts asaa asac asan asar asas asat asc- asca ascc ascr asct asnc asra asrc asrs assa assc assn assr asss asst asta astc astr asts at-t ataa atac atan atar atas atat atca atcc atcr atcs atna atns atra atrc atrn atsc atst atta attn attr atts caaa caac caan caas caat cac- caca cacc cacr cana canc cann cans cant cara carc carn carr cars cart casa casc casr cass cast cat- cata catc cats catt ccaa ccac ccar ccas ccat ccca cccc cccs ccna ccnc ccnr ccns ccra ccrc ccrs ccrt ccsa ccsn ccss ccst cctc cctt cnaa cnac cnas cnna cnrc cnrr cnrt cnsa cnss cnta cntc cntr crac cran crar cras crat crca crcc crcr crna crns crrt crsa crss crst crtc crts csaa csac csar csas csat cscc cscr cscs csra csrc csrs cssa cssr csta cstc cstr csts ctan ctca ctns ctrc ctrn ctrs ctsa ctsc ctsn ctss ctta cttn ctts naaa naac naan naar naas naat naca nacc nacs nan- nana nann nans nant nara narc narn narr nars nart nas- nasa nasc nasr nass nast nata natc nats natt ncaa ncac ncar ncat ncca nccc nccn nccr nccs ncct ncna ncnc ncra ncrc ncsa ncsc ncss ncst ncta nctc nctr nnnn nnsa nnss nntn nras nrca nrcs nrna nrrc nrsa nrsc nrta nrts nsaa nsac nsar nsca nscc nscs nsna nsnr nsra nsrc nssa nssc nssr nsss nstc nsts ntcc ntrc ntsc ntss nttr raan raas raat rac- raca racc racs ract rana ranc rann rans rant rara rars rasa rasc rass rast rata rats ratt rcac rcas rccc rccs rcnr rcsa rcsc rcss rctc rcts rnas rncs rnnt rras rrat rrna rrrr rsaa rscc rscn rscs rsna rsnn rsnr rssa rsts rtan rtas rtca rtcc rtns rtss rtts sa-c saac saan saar saas saat saca sacc sacn sacr sacs sact sana sann sanr sans sant sara sarc sarn sarr sars sart sasa sasc sass sast sata satc satn satr sats satt scaa scac scan scar scas scat sccc sccs scct scna scnr scnt scr- scra scrc scrn scrs scsa scsc scsn scsr scst sctc sctn sctr scts snar snas snat snca sncc snns snra snrs sntr sras srcc srct srna srnn srta srtr ssaa ssac ssan ssas ssat ssca sscc sscs ssns ssra ssrc ssrs sssa sssc ssss ssta sstc ssts stac stan star stas stat stca stcc stcs stnn stnr stns stra strc strn strs stss sttc sttr taa- taan taar taas taat taca tacc tacs tact tana tann tans tant tara tarc tarn tarr tars tart tasa tasc tasr tass tast tata tatr tats tatt tcca tccc tcnn tctc tcts tnca tncc tnts traa trac tran tras trat trca trcc trna trra trst trtc trtr tsaa tsar tsat tsca tscc tsna tssa tssr tsst tstc tsts ttcn ttss tttt