a-ha aaaa aaab aaac aaah aaar aaas aaba aabb aabc aabh aaca aacb aacc aach aacr aacs aacu aaha aahs aara aarc aars aaru aasa aasc aass aasu aaus abaa abab abac abar abas abau abb- abba abbb abbr abbs abca abcb abcc abch abcr abcs abha abhr abhs abra abrc abrs abs- absa abss absu abua abus acaa acab acac acar acas acba acca accc acch accs accu acha achh achr achs achu acr- acra acrc acrr acrs acsa acsc acss acu- acur acus ahab ahac ahah ahar ahas ahau ahha ahhs ahra ahrc ahrr ahrs ahsa ahss ahua ahus arab arac arah arar aras arau arba arbh arbs arc- arca arch arcs arh- arhs arr- arra arrc arrh arrr arrs arru ars- arsa arsc arsu arua arub asaa asab asac asah asar asas asau asba asbu asc- asca ascb ascc asch ascr asha ashs ashu asra asrc asrs asru assa assc assh assr asss assu asub asur asus auaa auca auch aur- aura ausa aush ausu baaa baah baar baas baba babb babr babs babu bac- baca bacc bach bacs baha bahr bahs bahu bar- bara barb barc barh barr bars baru basa basc bash bass basu bau- baur bbas bbau bbbb bbbs bbch bbhs bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bchs bcra bcrs bcru bcsa bcsc bcss bcuc bhar bhca bhcc bhhs bhra bhur bhuu brab brac brah bras brau brca brcb brhs brrr brrs brsb brsr bruc bruh brus bsaa bsac bsas bscs bshs bsra bssc buar buba bubb bubs bubu buca bucc buch bucs bucu buha buhr buhs bur- bura burb burh burr burs buru busa busc bush buss busu buus caaa caab caac caah caas caba cabs cabu cac- caca cacc cach cacr caha cahs cara carb carc carr cars casa casb casc cash casr cass casu cauc caus cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbcu cbha cbhs cbrh cbsa cbsc cbus ccaa ccab ccac ccar ccas ccba ccbc ccca cccb cccc cccs cccu ccha cchr cchs ccra ccrc ccrs ccsa ccss ccuc ccus chaa chab chac chah char chas chau chca chch chcs chha chhs chra chrb chrc chrr chrs chsc chsh chsr chua chub chur chus crab crac crar cras crau crbc crbu crca crcc crcr crhs crsa crss crub crus csaa csab csac csar csas cscb cscc csch cscr cscs cshs csra csrc csrs cssa cssr csua csur csus cuau cub- cuba cubb cubs cuca cucc cura curb curr curs cusa cusb cush cuss cusu haab haar haas haba habs habu hacs haha hahs hara harc harh harr hars haru hasa hasc hash hass hau- haus hbar hbbs hbhs hbrs hbss hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcss hhaa hhhh hhhs hhus hrac hras hrhs hrrc hsac hsas hsbc hscc hshs hsua hsur huac huah huas huba hubb hubs huch hucs hucu huhs huhu hura hurr hurs huru husa hush huss huub huus raab raas raba rabb rabs rabu rac- raca racc rach racs racu raha rahr rahs rahu rara rarb rars rasa rasc rash rass rasu raua raub rauc raus rbbb rbbr rbbs rbhs rbss rcac rcas rcbc rccb rccc rccs rchb rchs rcsa rcsc rcss rhau rhhs rhus rrah rras rrhs rrrr rsaa rscc rsch rscs rshs rssa rsua ruah ruas ruba rubb rubs rubu ruca ruch ruhh ruhr ruhs rura rurc rurs ruru rusa rush russ rusu sa-c saab saac saah saar saas saba sabb sabc sabr sabs sabu saca sacc sacr sacs sacu saha sahr sahs sahu sara sarc sarh sarr sars saru sasa sasc sash sass saua sauc sauh saur saus sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbhc sbhs sbsa sbus scaa scab scac scar scas scba sccc sccs sch- scha schh schr schs scr- scra scrc scrs scsa scsc scsh scsr scsu scua scub scur shab shac shah shar shas shau shbs shca shcc shha shhh shhs shrs shsc shua shub shur shus shuu sras srbc srcc srch srhs srub ssaa ssab ssac ssas ssau ssbr ssca sscc sscs sshs ssra ssrc ssrs sssa sssb sssc sssh ssss suar suas sub- suba subb subh subs suc- succ such sucr sucs suha suhb suhr sur- sura surc surr surs suru sus- susa suss susu suus uabc uaca uahs uarc uars uaru uasa uaua ubac ubar ubba ubra ucar ucas ucbc ucca ucha uchs ucrc ucsa ucsb ucsc ucsu ucua uhrs uhss uhuh urac uras urau urba urbs urca urch urra urrh ursa urss ursu urur urus us-a usaa usac usar usas usba usbc usbr usbs usca uscc usch uscs usha ushr ushs ushu usra ussa ussb ussc ussr usss ussu usua usus uuuu