a-fu aaaa aaab aaaf aaal aaap aaar aaba aabb aabl aabp aafa aafb aaff aafl aala aall aalo aalu aaoo aapa aapl aapo aara aaro aarp aaru aaup abaa abab abaf abal abap abar abau abb- abba abbb abbo abbr abff abla ablo aboa abob abof abol aboo abor abou abpa abpp abpr abra abro abua abuf abul afaa afao afap afar affa affo afla aflp afoa afol afoo afor afpa afr- afra afro afru afua al-p alaa alal alao alap alar alau alb- alba albo albu alfa all- alla alll allo allr allu aloa alof alol aloo alop alor alou alpa alpl alpo alpu alro alua aluf alur aoba aola aopo aora aorb aouf aoul apal apao apap apar apba apbr apfa apfl apfo apl- apla aplp aplu apo- apof apoo apop apor apou appa appl appr appu apra apro apua apup arab araf aral arap arar arau arba arfa arfb arff arfu arla arlo aroa arob aroo aror arpa arpl arpu arr- arra arro arrr arru arua arub arul arup auaa aul- aula aulf aull aulo aulu auol aur- aura auro baaa baaf baal baar baba babb babo babr babu baff bafo bala balf ball balo balu baol bapa bapp bapu bar- bara barb barf baro barr baru bau- bauf baul baur bbau bbbb bblb bbpr bffl bfpo bfpp blaa blab blau blob bloo blop blou blub bluf blup blur boab boal boar boba bobb bobo bobu bofa boff bofu bola boll bolo bolu boob boof bool boop boor bopa bopp bor- bora borf boro borr boru boua bouf boul boup bour bpfl brab braf brao brau brfu brlp broa brob brol broo bror brou brrr brup bual buar buba bubb bubo bubu buff bufo bufr bula bulb bull bulu buol bupa bur- bura burb burl buro burp burr buru faaa faap faba fabo fabu fafa faff fafo fala fall falo falu fapa fapl fapp fara farb farl faro farp farr faru faul faur fbar fbla fbop ffar ffff ffrr flab flao flap flob floo flop flor flou flub fluf fluo flur foaf foal foar foba fofo fola foll folo folr foof fool fopp for- fora forb forl foro forr foua foul foup four fpaa fpla fpra fprf frab frap frau frla frob frol frop frou frub fuar fubb fubu fuff fufu fula full fulu fuor fur- fura furl furo furr laaa laal laap laar laba labo labr labu lafb laff lala lall lalo lalu laou lapa lapb lapp lapu lara larb larf larp larr laru laub lauf laul laur lbar lblr llao llll lloa lloo loaf loap loar lob- loba lobb lobo lofa loff lola loll lolo loob loof lool loop loor lopa lopp lopu lora loro loul loup lour louu lpfp lpla lppl lprp lral lrba lrpu lrrr luau luba luff lufu lula lull lulu lupa lupo lupu lura luua luup oaau oafo oall oara obal obba obbo obla oblu obol obor obra obro off- offa offo offr offu ofla ofor ofra olaf olar olba olbo olfa olla ollo olof olor olur ooaa ooba ooff oola oolo oooo oora opal opap opar opla opo- opor oppa oppo opra opua orab oral orao orar orba orbb orbo orbu orff orfu orla orlo orlu oro- orof oror orra orro orub orup ouff oula oulu oupa our- oura ouro ouu- paal paap paar paba pabu pafa paff pala pall palo palp palu papa papb papp papr par- para parf parl paro parp parr paru paua paul paup paur pbar pblu pbpa pbrf pfaa pfff pffr pfra plaa plab plaf plap plar plau plbr plfa plff plob ploo plop plou plpa plpp plra plua plup plur poar poba pobo poff pola poll polo polu poof pool poop poor pop- popa popo popp pora porb poro porr pouf poul poup pour ppal ppap ppar ppfa pplo ppoa pppa pppo pppp pprf ppru ppur prao prar prau prlr pro- proa prob prof prol proo prop prou pruf pruu puao puar publ pubu puff pula pull pulo pulp pulu pupa pupl pupu pur- pura purb purl puro purp purr puru raab raaf raba rabb rabl rabo rabu rafa raff rala ralb ralf rall ralo raob raol raop rapa rapl rapp rara rarb rarf raro raua raub rauf raul raup rbaf rbbb rbbr rffl rlab rlua roab roaf roap roar rob- roba robb robo robu roff rofl rofo rola rolf roll rolo rolp roob roof rool roop roor ropa ropo rora roro roru roua roub rouf roul roup rpob rpof rrrr ruba rubb rubp rubu rufa ruff rufo rula rull rulo rupa rupp rura ruro rurp ruru u-rp uafa uaru uaua ubal ubar ubba ubbo ubla ublo ubra uffa ufpb ufra ulaa ular ulla ullo ullr ulo- ulua ulul uofa uofl uofo uor- upal upar upla uplb uplo upor uppa uppp uppu upra upup ural urao urap urau urba urfa urff urla uro- uroa urol uroo urpo urra urup urur uulu uuuu