a-ak a-wa aaaa aaab aaac aaad aaar aaas aaba aabb aabc aabd aabw aaca aacb aacc aacd aack aacr aacs aada aadc aads aaka aara aarc aard aars aasa aasc aasd aass aaww abaa abab abac abad abak abar abas abaw abb- abba abbb abbr abbs abca abcb abcc abcd abcr abcs abcw abda abra abrc abrs abs- absa absd abss absw abwa abwr acaa acab acac acad acar acas acba acca accc accd accs acda acdb acdc acds ackd acks ackw acr- acra acrc acrr acrs acsa acsc acsd acss acsw acwa acww adaa adab adac adad adak adar adas adaw adba adbc adcc adcs adda addc addd addr adds adra adrs adsa adsr adss adwa akaa akar akas akca akka akr- akra aksa akwa arab arac arad arak arar aras araw arba arbs arc- arca arcs arda ardc ards arka arks arr- arra arrc arrk arrr arrs ars- arsa arsc arsd arsk arwa asaa asab asac asad asak asar asas asba asc- asca ascb ascc ascr ascw asda asds aska askr asks asra asrc asrs assa assc assd assk assr asss awac awad awar awas awds awka awsk awss awwa awws baaa baad baak baar baas baba babb babr babs bac- baca bacc back bacs bada badb badd badr bads bak- baka bakr baks bar- bara barb barc bard bark barr bars basa basc bask bass baw- bawd bawk baws bbad bbas bbbb bbbs bbdd bbrc bbwc bbwr bbws bcaa bcar bcas bcbc bcbs bcca bccc bccs bcda bcds bcra bcrs bcsa bcsc bcss bd-r bdbc bddc bdsd brab brac brad brak bras braw brca brcb brcw brda brds brka brkb brrr brrs brsb brsr bsaa bsac bsas bsaw bsbd bscs bsdw bsra bsrd bssc bssd bwaa c-cd caaa caab caac caas caba cabs cac- caca cacc cack cacr cacw cada cadc cadd cadr cads cadw caka cara carb carc card cark carr cars casa casb casc casd cask casr cass cawk caws cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbdb cbdc cbds cbka cbkr cbrd cbsa cbsc cbwa cbwd ccaa ccab ccac ccad ccar ccas ccba ccbc ccca cccb cccc cccs ccdc ccdr ccds cckw ccra ccrc ccrs ccsa ccsd ccss cd-r cdaa cdac cdad cdba cdcs cdda cddb cddr cdrs cdss ckac ckbc ckck ckcs ckcw ckrc ckrd ckrw cksa cksb cksw ckwd ckwr ckws ckww crab crac crar cras craw crbc crca crcc crcr crda crdc crkc crsa crss crwd csaa csab csac csak csar csas cscb cscc cscd cscr cscs csda csdb csdr cska csks csra csrc csrd csrs cssa cssd cssr cswk csws cwac cwrw daab daad daar daas daba dabb dabs daca dacs dada dads daka daks dara darb darc dard dark darr dars dasa dasb dasc dasd dask dass dawa dawd dawk dawr daws dbar dbas dbcc dbcs dbrs dbsa dbss dcas dcbc dcca dccb dccc dccs dcdb dcds dcra dcrk dcsc dcss dddd ddrc ddss dkba dkdc draa drab drac drad drak drar dras draw drba drbc drca drda drkw drra drrs drsa dsac dsba dsbc dscc dscr dscs dsda dsdr dsrc dsrr dssa dssc dwac dwad dwar dwas dwbr dwcw dwdd dwkc dwrd dwrk dwrw dwsk dwsr dwww kaaa kaab kaak kaar kaas kaba kabb kabc kabd kabr kabw kacb kacc kacd kacs kacw kad- kada kadd kadr kads kaka kakc kakk kaks kara karb kard kark karr kars karw kas- kasa kasb kasc kask kasr kass kasw kaw- kawa kawc kawk kaws kaww kbaa kbab kbac kbad kbak kbar kbas kbba kbbb kbbc kbbd kbbk kbbr kbbs kbbw kbca kbcb kbck kbcr kbcs kbcw kbdb kbdr kbds kbkb kbkk kbkr kbkw kbra kbrb kbrc kbrd kbrk kbrw kbsa kbsb kbsk kbsr kbss kbsw kbwa kbwb kbwc kbwd kbww kcaa kcab kcac kcad kcar kcas kcaw kcba kcbc kcbd kcbk kcbr kcbs kcbw kcca kccb kccc kccd kcck kccr kcda kcdc kcdd kcdr kcds kckc kckk kckr kcrc kcrr kcrs kcrw kcsa kcsb kcsc kcsd kcsr kcss kcwa kcwb kcwc kcwd kcwk kcwr kdaa kdab kdac kdad kdak kdar kdbb kdbr kdbs kdca kdcc kdcd kdcr kddb kddc kddd kddk kddr kdka kdkb kdkd kdkk kdkr kdrb kdrs kdrw kdsc kdsd kdsk kdsr kdss kdwa kdwd kkaa kkac kkar kkaw kkba kkbb kkbd kkbr kkbs kkcb kkcd kkck kkcr kkcs kkcw kkda kkdc kkdd kkkk kkrb kkrc kkrk kkrr kkrs kksa kksd kksr kkss kksw kkwb kkwd kkwk kkws krab krac krad krak krar kras kraw krba krbb krbd krbk krbr krbw krca krcb krcc krcd krcs krcw krda krdc krdd krdr krds krka krkc krkd krkk krkr krks krkw krrb krrc krrk krrr krrs krrw krsa krsc krsd krsk krsr krss krsw krwa krwb krwc krwk krwr ksab ksac ksak ksar ksas ksaw ksba ksbc ksbr ksbs ksbw ksca kscb ksck kscr kscs ksdc ksdk ksdr ksds ksdw kska kskb kskd kskk kskr ksks ksra ksrb ksrr ksrs ksrw kssa kssr ksss kswa kswb kswc kswd ksws ksww kwab kwac kwad kwak kwar kwaw kwbc kwbw kwca kwcd kwck kwcr kwdc kwdd kwdk kwdr kwdw kwka kwkb kwkc kwkk kwkr kwkw kwrb kwrd kwrk kwrr kwrs kwrw kwsa kwsc kwsd kwsk kwss kwsw kwwk kwwr kwws raab raad raak raas raba rabb rabk rabs rac- raca racc rack racs rada radc radd radr rads raka rakk rara rarb rark rars rasa rasc rasd rask rass rawa rawk rawr raws raww rbbb rbbr rbbs rbds rbsd rbss rcac rcas rcbc rccb rccc rccs rcdc rcds rcrd rcsa rcsc rcsd rcss rdac rdas rkss rrad rras rrrr rsaa rscc rscs rsdd rsds rssa rwcs sa-c saab saac saad saak saar saas saba sabb sabc sabr sabs saca sacc sacd sack sacr sacs sada sadb sadc sadd sadr sads saka sakb sakk saks sara sarc sard sark sarr sars sasa sasc sasd sask sass sawa sawd saws sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbds sbrk sbsa sbsd sbwr scaa scab scac scad scak scar scas scaw scba sccc sccs scda scdc scds sck- scr- scra scrc scrs scsa