a-ha aaaa aaab aaah aaap aaar aaba aabb aabh aabp aabt aaha aaoo aapa aaph aapo aapt aara aaro aarp aart aata aatt abaa abab abap abar abat abb- abba abbb abbo abbr abbt abha abho abhr aboa abob aboh aboo abor abot abpa abpp abpr abra abro abta ahab ahah ahar ahat ahha ahoa ahop ahor ahot ahra ahrr ahta ahto aoah aoba aopo aora aorb aort apah apao apap apar apat apba apbr aph- apha apo- apoo apop apor apot appa apph appr appt apra apro aprt apta aptt arab arah arap arar arat arba arbh arh- aroa arob aroo aror arpa arr- arra arrh arro arrr arrt arta arth arto artr at-t ataa atab atap atar atat atha atho atob atop ator atot atpr atra atro atrp atta atto attp attr baaa baah baar baat baba babb babo babr baha baho bahr baht baoh bapa bapp bapt bar- bara barb barh baro barr bart bata bath bato batt bbbb bbpr bhao bhar bhat bhor bhot bhra bhrt boab boar boat boba bobb bobo boha boho bohr boht boob booh boop boor boot bopa bopp bor- bora borh boro borr bort bota botb both boto bott bpot brab brah brao brat broa brob broh broo bror brot brrr btaa btbp btob btor btrt bttb haab haar haat haba habo habt haha haho haht haor hapa happ hara harh haro harp harr hart hata hatb hath hato hatt hbar hhaa hhat hhhh hhpa hhtp hoap hoar hoat hoba hobo hoha hoho hoop hoor hoot hopa hopo hopp hopt hora horo horr hort hota hotb hoth hoto hotp hotr hott hpao hpot hprt hpto hrap hrob hrpp hrta hrtb htab htoh htop htpa htpp htra http httr oahp oaph oara oath obba obbo obor obot obra obrh obro ohba ohho ohob ohoh ohra ohta ohto ooaa ooba ooha ooho oooh oooo oora oort ootb ootp opah opap opar opo- opor oppa oppo opra opto orab orah orao orar orat orba orbb orbo oro- oror orot orph orra orro orta orth orto otap otar otha otho othr oto- otoh otoo otor otpp otra otro otta otto paap paar paat paba pabt paha paho pahp paoh papa papb papp papr par- para paro parp parr part pata path pato patr patt pbar pbpa phah phar phat phht phob phoh phoo phot phpa phrr poar poat poba pobo poha pooh poop poor poot pop- popa popo popp popt pora porb poro porr port pota poth poto pott ppap ppar ppoa pppa pppo pppp ppta pptt prao prar prat pro- proa prob proo prop prot prtp prtr ptab ptah ptop raab raat raba rabb rabo raha rahr raht raob raoh raop rapa raph rapp rapt rara rarb raro rata rath rato ratp ratt rbbb rbbr rboh rhap rhoa rhob rhoh roab roap roar roat rob- roba robb robo robt roha rohr roob roop roor root ropa ropo rora roro rort rota roth roto rotr rott rpho rpob rpta rrah rrat rrrr rtpa rttp taa- taar taat taba tabb tabo taha taho tahr taoa taor tapa tapo tapp tapr tapt tara tarb taro tarp tarr tart tata tatb tath tato tatr tatt tbar tbrb tbta tbtp thaa thao thar that thhp thoo thor thot thpp thra thro thtb thtr toab toat toba tobo tobt toho tooa tooh toor toot top- topa toph topo topp topt tora toro torp torr tort tota toth toto totr tott tpap tppa tppp tppr tptp tptr traa trab trao trap trat troa troo trop trot trpa trpp trra trtr ttab ttbb ttop tttt