a-ak aaaa aaab aaac aaal aaap aaar aaas aaba aabb aabc aabl aabp aabt aaca aacb aacc aack aacl aacp aacr aacs aact aaka aala aalc aall aals aapa aapc aapl aaps aapt aara aarc aarp aars aart aasa aasc aass aast aata aatc aatk aatt abaa abab abac abak abal abap abar abas abat abb- abba abbb abbr abbs abbt abca abcb abcc abcl abcp abcr abcs abct abla abls abpa abpc abpp abpr abps abra abrc abrs abs- absa absl absp abss abta abts ac-t acaa acab acac acap acar acas acat acba acbl acca accc accp accs acct acks acla aclc aclr acls acpa acpr acps acpt acr- acra acrc acrr acrs acsa acsc acsl acss acst acta actc actl acts actt akaa akal akap akar akas akca akka akr- akra aksa akst al-p alaa alac alak alal alap alar alas alat alb- alba albc albs alca alcc alcs alk- alka alkb all- alla alll allr alls alpa alpl alps alsa alsc alst alta alts apac apak apal apap apar apas apat apba apbr apbs apca apcb apcc apcr apcs apl- apla aplp apls appa appc appl appr apps appt apra aprc aprs aprt apsa apsl apss apta aptc apts aptt arab arac arak aral arap arar aras arat arba arbs arc- arca arcs arct arka arks arla arpa arpl arps arr- arra arrc arrk arrr arrs arrt ars- arsa arsc arsk arst arta artc artr arts asaa asab asac asak asal asap asar asas asat asba asc- asca ascb ascc ascl ascp ascr asct aska askr asks askt asla aslr aspa aspc aspl aspr asps aspt asra asrc asrs assa assc assk assl assp assr asss asst asta astb astc astl astp astr asts at-l at-t ataa atab atac atak atal atap atar atas atat atbs atca atcc atck atcl atcr atcs atka atkt atla atls atpr atra atrc atrk atrp atsb atsc atst atta attp attr atts baaa baak baal baar baas baat baba babb babr babs bac- baca bacc back bacs bact bak- baka bakl bakr baks bakt bala balc balk ball bals balt bapa bapc bapp baps bapt bar- bara barb barc bark barr bars bart basa basc bask bass bast bata batc bats batt bbas bbbb bbbs bblb bbls bbpr bbrc bcaa bcap bcar bcas bcat bcbc bcbp bcbs bcca bccc bccl bccs bcpl bcpp bcps bcra bcrs bcsa bcsc bcsl bcss bctc bcts bkpr bkpt bksp blaa blab blac blak blas blat blbt blkb blls blrc blsp blss blst blts bpcp bprc bpsa brab brac brak bras brat brca brcb brka brkb brlp brls brrr brrs brsb brsr brst brtc bsaa bsac bsap bsas bsat bscp bscs bskt bslc bspp bspr bsra bssc bsts btaa btbp btcc btcl btcs btla btlp btps btrc btrt btss bttb caaa caab caac caal caap caas caat caba cabs cac- caca cacc cack cacr caka cala calc calk call calp cals calt capa capb capc capp caps capt cara carb carc cark carl carp carr cars cart casa casb casc cask casl casp casr cass cast cat- cata catb catc cats catt cbac cbal cbar cbat cbbc cbbs cbca cbcc cbcl cbcp cbcr cbcs cbct cbka cbkl cbkr cblb cblc cbpc cbpp cbrl cbrt cbsa cbsc cbta cbtc cbtl ccaa ccab ccac ccap ccar ccas ccat ccba ccbc ccca cccb cccc cccl cccp cccs ccla cclc ccls ccpa ccpl ccpp ccpr ccps ccra ccrc ccrl ccrp ccrs ccrt ccsa ccsl ccsp ccss ccst cctb cctc cctl cctt ckac ckat ckbc ckck ckcl ckcs ckpc ckpr ckrc cksa cksb cksl ckst cktb ckts clab clap clar clas clat clpb clpp clra clrs clsa clsc cltb cltc clts cpaa cpac cpap cpas cpbc cpca cpcs cplc cpls cppa cpps cprs cprt cpsa cpsc cpsk cpsl cpsr cptp cptr cpts crab crac crap crar cras crat crbc crca crcc crcr crkc crkl crkp crls crpc crps crrt crsa crsp crss crst crtc crtl crtp crts csaa csab csac csak csar csas csat cscb cscc cscl cscr cscs cska csks csla cslp cslr cspa cspb cspc csps cspt csra csrc csrs cssa cssr csta cstc cstr csts ctab ctal ctba ctbs ctca ctcp ctls ctpp ctps ctrc ctrl ctrp ctrs ctsa ctsc ctss ctta ctts kaaa kaab kaak kaal kaap kaar kaas kaat kaba kabb kabc kabr kacb kacc kacl kacp kacs kact kaka kakc kakk kaks kakt kala kalb kalc kalk kall kalp kals kalt kap- kapa kapc kapl kapp kaps kapt kara karb kark karl karp karr kars kart kas- kasa kasb kasc kask kasl kasp kasr kass kast kat- kata katb katc katk katl katp katr kats katt kbaa kbab kbac kbak kbal kbap kbar kbas kbat kbba kbbb kbbc kbbk kbbl kbbr kbbs kbbt kbca kbcb kbck kbcl kbcr kbcs kbct kbkb kbkk kbkl kbkr kbla kblb kbll kblp kblr kbls kblt kbpa kbpc kbpk kbpr kbps kbpt kbra kbrb kbrc kbrk kbrl kbrt kbsa kbsb kbsk kbsr kbss kbst kbta kbtb kbtc kbtk kbtl kbtr kbts kbtt kcaa kcab kcac kcal kcap kcar kcas kcat kcba kcbc kcbk kcbl kcbr kcbs kcca kccb kccc kcck kccl kccr kcct kckc kckk kckl kckr kcla kclc kclk kcll kclr kcls kclt kcpa kcpc kcpl kcpr kcps kcpt kcrc kcrp kcrr kcrs kcrt kcsa kcsb kcsc kcsp kcsr kcss kcst kcta kctb kctc kkaa kkac kkal kkap kkar kkat kkba kkbb kkbl kkbr kkbs kkbt kkcb kkck kkcl kkcr kkcs kkct kkkk kklb kklc kkll kkls kkpc kkpk kkpl kkps kkpt kkrb kkrc kkrk kkrl kkrr kkrs kkrt kksa kksp kksr kkss kkst kktc kktk kktl kkts klaa klab klac klak klal klap klar klas klat klbb klbc klbl klbs klbt klca klcb klcc klck klcl klcr klcs klka klkc klkk klkl klkr klks klla kllb kllc kllk kllp klls klpc klpr klrc klrk klrr klrs klsa klsc klsr klst kltc kltk kltr kltt kpac kpak kpal kpar kpas kpat kpba kpbb kpbl kpbr kpbs kpcc kpcl kpcr kpcs kpkk kpkl kpkr kpla kplc kplk kplr kplt