aaaa aaac aaar aaas aaca aacc aacr aacs aact aara aarc aars aart aasa aasc aass aast aata aatc aatt ac-t acaa acac acar acas acat acca accc accs acct acr- acra acrc acrr acrs acsa acsc acss acst acta actc acts actt aqar aqas aqra aqsa arac araq arar aras arat arc- arca arcs arct arq- arqa arr- arra arrc arrr arrs arrt ars- arsa arsc arst arta artc artr arts asaa asac asar asas asat asc- asca ascc ascq ascr asct asqc asra asrc asrs assa assc assq assr asss asst asta astc astr asts at-t ataa atac ataq atar atas atat atca atcc atcr atcs atra atrc atsc atst atta attr atts caaa caac caas caat cac- caca cacc cacr cara carc carr cars cart casa casc casr cass cast cat- cata catc cats catt ccaa ccac ccar ccas ccat ccca cccc cccs ccra ccrc ccrs ccrt ccsa ccss ccst cctc cctt crac crar cras crat crca crcc crcr crrt crsa crss crst crtc crts csaa csac csar csas csat cscc cscr cscs csra csrc csrs cssa cssr csta cstc cstr csts ctca ctrc ctrs ctsa ctsc ctss ctta ctts qa-c qara qars qasr qass qats qqqq qrss qrst qsas qsqs qsqt qsrs qtar qtrs raas raat rac- raca racc racq racs ract raqt rara rars rasa rasc rass rast rata rats ratt rcac rcas rccc rccs rcsa rcsc rcss rctc rcts rras rrat rrrr rsaa rscc rscs rssa rsts rtas rtca rtcc rtss rtts sa-c saac saar saas saat saca sacc sacr sacs sact sara sarc sarr sars sart sasa sasc sass sast sata satc satr sats satt scaa scac scar scas scat sccc sccs scct scr- scra scrc scrs scsa scsc scsr scst sctc sctr scts sqrt sras srcc srct srta srtr ssaa ssac ssas ssat ssca sscc sscs ssra ssrc ssrs sssa sssc ssss ssta sstc ssts stac star stas stat stca stcc stcs stra strc strs stss sttc sttr taa- taar taas taat taca tacc tacs tact taqa tara tarc tarq tarr tars tart tasa tasc tasr tass tast tata tatr tats tatt tcca tccc tctc tcts traa trac tras trat trca trcc trra trst trtc trtr tsaa tsar tsat tsca tscc tssa tssr tsst tstc tsts ttss tttt