a-be a-ha aaaa aaab aaae aaaf aaah aaap aaar aaba aabb aabh aabp aaea aaep aafa aafb aaff aaha aaoe aaoo aapa aaph aapo aara aare aaro aarp abaa abab abae abaf abap abar abb- abba abbb abbe abbo abbr abee aber abff abha abho abhr aboa abob abof aboh aboo abor abpa abpp abpr abra abro aeaf aeap aeer aer- aera aero afaa afao afap afar afee afer affa affo afoa afoe afoo afor afpa afpe afr- afra afre afro ahab ahah ahar ahfa ahha ahoa ahoe ahop ahor ahra ahre ahrr aoah aoba aopo aora aorb apah apao apap apar apba apbr apea apeh apep aper apfa apfo aph- apha apo- apoe apof apoo apop apor appa apph appr apra apre apro arab arae araf arah arap arar arba arbe arbh area aree aref areh areo arep arfa arfb arff arh- aroa arob aroe aroo aror arpa arpe arr- arra arre arrh arro arrr baaa baaf baah baar baba babb babe babo babr baer baff bafo baha baho bahr baoh bapa bape bapp bar- bara barb bare barf barh baro barr bbbb bbeb bbpr beaf beah beap bear beba bebb bebe bebo beeb beef beep beer befa befe beff befo behr beo- beof beor bepo bera bere bero berr bfpo bfpp bhao bhar bher bhff bhor bhra boab boar boba bobb bobe bobo boea boee boef boeo boep boer bofa bofe boff bofh boha boho bohr boob booe boof booh boop boor bopa bope bopp bor- bora bore borf borh boro borr bpea bpoe brab brae braf brah brao brea breb bree bref breo brep brer broa brob broe broh broo bror brrr eaaf eaba eabh eafb eaop eapp eara earb eare earh earo earp ebba ebbo ebbr eber eboe eboo ebor ebpo ebro eeea eeee eefa eefe eera eero efab efbr efeo effa efor efpa ehaa ehea eheh eher ehre eora eore epaa epee eper epfa eph- epha epor eppa eppo eppp epra eprb epro eprp eraf erap erba erbb erbe ereb erer erob eroe eroo erpa erpe erra erre erro faaa faah faap faba fabe fabo faeb fafa fafe faff fafo faha fahr fapa fape fapp fara farb fare faro farp farr fbar fbop feaf feap fear feba febo feeb feer fefe feff fefo fehr feof feoh fepa fera ferb fere fero ferr ffar ffee ffff ffrr foaf foar foba foer fofo fohr foof fopp for- fora forb fore foro forr fpaa fpra fprf frab frae frap frea free freo frep frob froe froh frop haab haaf haar haba habe habo hafb hafe haff haha haho haor hapa hape happ hara hare harf harh haro harp harr hbar heaf heah heap hear hebb hebe hebo hebr heeb heef heep heer hefe hehe heho heor hepa hepe hepp hera herb here hero herp herr hfba hhaa hhhh hhof hhpa hoap hoar hoba hobe hobo hoer hofe hoff hoha hohe hoho hooe hoof hoop hoor hopa hope hopf hopo hopp hora hore horo horr hpae hpao hppe hrap hree hrob hrpp o-eo oaer oafo oahe oahp oaph oara oare obba obbo obea ober oboe obor obra obre obrh obro oepa oera oere ofah ofer off- offa offe offh offo offr ofor ofra ofre ohba ohbe ohee oher ohho ohob ohoh ohra ohre ooaa ooba oobe ooer ooff ooha ooho oooh oooo oora oore opah opap opar opep oper opo- opor oppa oppo opra orab orae orah orao orar orba orbb orbe orbo ore- orea oreb oreh oreo orer orfe orff orhe oro- oroe orof oror orpe orph orra orro paap paar paba paea paep paer pafa pafe paff paha paho pahp paoh papa papb pape papp papr par- para pare parf paro parp parr pbar pbpa pbrf peab peah peap pear peba peep peer peff peha pehe peho pehr peor pepa pepe pepo per- pera pere perf perh pero perp perr pfaa pfff pffr pfra phah phar phe- phob phoh phoo phpa phrr poar poba pobo poea poer poff poha poof pooh poop poor pop- popa pope popo popp pora porb pore poro porr ppap ppar pper ppfa ppoa pppa pppo pppp pprf prae prao prar pre- preb pree pref prep pro- proa prob proe prof proo prop raab raaf raba rabb rabe rabo raef raep raer rafa rafe raff raha rahe rahr raob raoh raop rapa rape raph rapp rara rarb rare rarf raro rbaf rbbb rbbr rboh rea- reae reaf reao reap rear reba rebb rebe rebo reeb reef reep refe reff refr reha rehb rehe reof reop repe repo repp repr rera rere rero rfae rfef rhae rhap rhea rheb rhee rheo rhoa rhob rhoh roab roaf roap roar rob- roba robb robe robo roea roer rofe roff rofo roha rohe rohr roob roof roop roor ropa rope ropo rora rore roro rpho rpob rpoe rpof rrah rrrr