a-ha aaaa aaab aaac aaah aaap aaar aaba aabb aabc aabh aabp aaca aacb aacc aach aacp aacr aacu aaha aapa aapc aaph aara aarc aarp aaru aaup abaa abab abac abap abar abau abb- abba abbb abbr abca abcb abcc abch abcp abcr abha abhr abpa abpc abpp abpr abra abrc abua acaa acab acac acap acar acba acca accc acch accp accu acha achh achp achr achu acpa acpr acpu acr- acra acrc acrr acu- acup acur ahab ahac ahah ahar ahau ahha ahpu ahra ahrc ahrr ahua apac apah apap apar apba apbr apca apcb apcc apcr aph- apha aphc appa appc apph appr appu apra aprc apua apuc apup arab arac arah arap arar arau arba arbh arc- arca arch arh- arpa arpu arr- arra arrc arrh arrr arru arua arub arup auaa auca auch aucp aupc aur- aura baaa baah baar baba babb babr babu bac- baca bacc bach baha bahr bahu bapa bapc bapp bapu bar- bara barb barc barh barr baru bau- baur bbau bbbb bbch bbpr bbrc bcaa bcap bcar bcbc bcbp bcca bccc bcpp bcra bcru bcuc bcup bhar bhca bhcc bhra bhur bhuu bpcp bphc bprc brab brac brah brau brca brcb brrr bruc bruh brup buar buba bubb bubu buca bucc buch bucu buha buhr bupa bupc bur- bura burb burh burp burr buru caaa caab caac caah caap caba cabu cac- caca cacc cach cacr caha capa capb capc caph capp capu cara carb carc carp carr cauc caup cbac cbar cbbc cbca cbcc cbcp cbcr cbcu cbha cbpc cbpp cbrh ccaa ccab ccac ccap ccar ccba ccbc ccca cccb cccc cccp cccu ccha cchp cchr ccpa ccpp ccpr ccra ccrc ccrp ccuc ccup chaa chab chac chah chap char chau chbp chca chch chcp chha chpa chpp chpr chra chrb chrc chrp chrr chua chub chur cpaa cpac cpap cpbc cpca cpcu cpha cppa crab crac crap crar crau crbc crbu crca crcc crcr crpc crub crup cuau cub- cuba cubb cuca cucc cupp cupr cura curb curr haab haar haba habu haha hapa happ hapu hara harc harh harp harr haru hau- hbar hcap hcbc hcca hccb hccc hcch hcpc hcrp hhaa hhhh hhpa hhpc hpac hpcc hrac hrap hrpc hrpp hrrc huac huah huba hubb huch hucu huhu hupa hupp hura hurr huru huub paap paar paba pabu paca pach pacu paha pahp pahu papa papb papp papr par- para parc parp parr paru paua pauh paup paur pbac pbar pbcc pbpa pcaa pcap pcba pcbc pcca pccc pcha pchp pcpb pcpp pcra pcrc phah phar phcc phpa phrr phua ppac ppap ppar ppcc pppa pppp pprc ppru ppur prar prau prbc prca prcc prcp pruu puah puar pubu puca puch puha pupa pupu pur- pura purb purp purr puru puuc raab raba rabb rabu rac- raca racc rach racu raha rahr rahu rapa rapc raph rapp rara rarb raua raub rauc raup rbbb rbbr rcac rcbc rccb rccc rchb rhap rhau rhcp rpca rrah rrrr ruah ruba rubb rubp rubu ruca ruch ruhh ruhr rupa rupp rura rurc rurp ruru u-rp uabc uaca uarc uaru uaua ubac ubar ubba ubpc ubra ucar ucbc ucca uccp ucha ucpa ucpb ucph ucrc ucua uhuh uhup upac upar upca uppa uppc uppp uppu upra upup urac urap urau urba urca urch urra urrh urup urur uucp uuuu