bbbb bbeb bbpr bebb bebe bebi bebo beeb beef beek beep beer befe beff befo beik beir beke beki beko beo- beof beok beor bepo bere beri berk bero berr bfpo bfpp bibb bibe bibi bibo bieb bief bier biff bifi bike biko bio- bioi bipp birb bire biri birk biro birr bkpr bobb bobe bobi bobo boee boef boeo boep boer bofe boff boi- boie boii boke boki boko boob booe boof book boop boor bope bopp bor- bore borf bori bork boro borr bpoe breb bree bref brei brek breo brep brer brie brik brio brkb brob broe brok broo bror brrr ebbo ebbr eber eboe eboo ebor ebpo ebro eeee eefe eeke eero efbr efeo effi efik efke efor eiei eier eike eiki eiko eipo eipr eire ekeb ekek eker ekki ekoi ekpe ekpo eoir eore eori epee eper epi- epie epik epip epor eppo eppp eprb epro eprp erbb erbe ereb erei erer erie erik erio erke erki erob eroe eroi eroo erpe erre erro f--k fbop febo feeb feek feer fefe feff fefi fefo feie feio feir feke feko feof ferb fere ferk fero ferr ffee ffff ffii ffrr fibe fibp fief fier fife fiff fifi fifo fiii fike fiki fioe fior fipp fire firk fkbp foer fofo foie foke foki foof fook fopp for- forb fore fori fork foro forr fprf free frei freo frep frib frie frik frio frip frob froe frop i-be ibfi ibie ibri ibro ieie ieio iere ieri ifbb ifer ifor ifpo ifrb ifrf ifri iiie iiii iiio iioi iioo iiop iipf ikee iker ikki ikko ikoo ikri iobi ioee ioii ioio ioke ioko ioof iooi iooo iore iori ipbk ipek iper ipie ipkf ipko ipoe ipop ippf ippo ippr ipri irbe irbp iree irer irfe iri- irie irio irip irki irob irop irpe irre irri kbbb kbbe kbbf kbbi kbbk kbbo kbbr kbeb kbee kbef kbek kbeo kber kbfb kbff kbfi kbfk kbfo kbfp kbfr kbib kbie kbif kbik kbio kbkb kbkf kbkk kbko kbkr kbob kboe kboi kbok kboo kbpe kbpi kbpk kbpo kbpr kbrb kbre kbrf kbri kbrk kbro kebb kebe kebi kebr keef keek keep keer kefb keff kefr keib keif keii keik keio keir kekb keke keki keko keok kep- kepe kepi ker- kerb kere kerf keri kerk kero kerp kerr kfbk kfeb kfer kffb kfff kffk kfio kfir kfkb kfok kfoo kfor kfpr kfre kfri kfro kfrp kfrr kibb kibe kibi kibo kibr kief kier kife kiff kifr kiii kiik kiip kikf kiki kikk kiko kikr kioe kioi kiok kioo kip- kipe kipi kipo kipp kipr kirb kirf kiri kirk kiro kirp kirr kkbb kkbe kkbi kkbo kkbr kkfi kkfr kkik kkkk kkob kkoo kkor kkpk kkrb kkre kkrf kkrk kkro kkrr kobb kobe kobi kobk kobo kobr koei kofe koff kofi kofk kofo kofp koii koir kokb koke kokf koki kokk koko kokp kokr koob kooi kook kooo koop koor kopb kope kopf kopi kopp kopr korb kore korf kori kork koro korr kpbb kpbe kpbi kpbr kpek kper kpfk kpfr kpif kpir kpke kpkk kpkr kpob kpoe kpof kpok kpoo kpop kppk kppo kppp kppr kprb kpre kprf kpri kprk kpro kprp kprr krbb krbe krbi krbk krbr kreb kree kref krei krek kreo krfe krff krfo krfp krib krik krio krke krki krkk krko krkr krob kroe krof kroi krok kroo krop kror krpi krpr krrb krre krrf krri krrk krro krrr o-eo obbo ober obie obkb oboe oboi obok obor obre obri obro oere ofek ofer off- offe offo offr ofik ofor ofre oier oiii oike oiko oire oker okie okir okko okok okor okpe okpo okre okro oobe oobi ooer ooff oooo oore opei opep oper opie opii opio opo- opor oppi oppo orbb orbe orbi orbo ore- oreb orek oreo orer orfe orff orfi ori- orie orif orio orke orko oro- oroe orof orok oror orpe orpi orri orro pbpk pbrf peek peep peer peff peio peip peir peke peki pekk peko peor pepe pepi pepo per- pere perf peri perk pero perp perr pfff pffr pfkp pibb pibi piep pier piff piip pike piki pikk piko piob pipe pipi pipo pipp pire piri pirk piro pirr pkib pobo poer poff pofi poik poio poke poko poof pook poop poor pop- pope popi popo popp porb pore pori pork poro porr pper ppib ppie ppif pppo pppp pprf pre- preb pree pref prek prep pri- prie prif prii pro- prob proe prof proo prop prri rbbb rbbr rebb rebe rebk rebo reeb reef reek reep refe reff refi refr reif reii reik reir reke reki reko reof reop repe repi repo repp repr rere reri rero rfef rib- ribe ribo rief riek riep rier rife riff riif rike riki rikk ripe ripi ripp ripr rire riri rkkf rob- robb robe robi robo roer rofe roff rofo roif roik roio roir roke roki rokk roko rokr roob roof rooi rook roop roor rope ropo rore rori rork roro rpii rpob rpoe rpof rrif rrrr