bbbb bbdd bbdo bbeb bd-r bdii bebb bebe bebi bebo bede bedi bedo beeb beed beek beer beik beir beke beki beko beo- beod beok beor berd bere beri berk bero berr bibb bibe bibi bibo bide bidi bido bidr bieb bied bier bike biko bio- bioi birb bird bire biri birk biro birr bobb bobe bobi bobo bodb bode bodi bodo boee boeo boer boi- boid boie boii boke boki boko boob bood booe book boor bor- bord bore bori bork boro borr brdo breb bred bree brei brek breo brer brid brie brik brio brkb brob brod broe brok broo bror brrr d-bo dddd ddie ddre debe debi dedd dede dedi dedo deeb deed deek deer deid deie deir dek- deke deor der- derb dere deri derk dero derr dibb dibe dibo dide didi dido dieb died dier diii dike diki diko dior dird dire dirk dirr dkid dobb dobe dobi dod- dodd dode dodi dodo doek doer doid doke doki doko doob dood dook door dord dore dori dork doro dorr dred dree drei drek drib drie drob drod ebbo ebbr ebed eber ebid eboe eboo ebor ebro edde eddi eddo ede- edei eder edie edik edod eede eeee eeke eero eid- eide eidi eido eidr eied eiei eier eike eiki eiko eird eire ekeb eked ekek eker ekki ekoi eode eoir eore eori erbb erbe erde erdi ereb ered erei erer erie erik erio erke erki erob erod eroe eroi eroo erre erro i-be ibdo ibed ibid ibie ibrd ibri ibro idbe iddo ided idee ideo ider idid idie idio idir idre idro iedr ieie ieio iere ieri iide iied iiie iiii iiio iioi iioo ikee iker ikid ikki ikko ikoo ikri iobi iod- iodd iode iodo ioee ioii ioio ioke ioko iooi iooo iore iori irbe irdo ired iree irer iri- irid irie irio irki irob irod irre irri k-id kbbb kbbd kbbe kbbi kbbk kbbo kbbr kbdb kbde kbdi kbdo kbdr kbeb kbed kbee kbek kbeo kber kbib kbid kbie kbik kbio kbkb kbkk kbko kbkr kbob kbod kboe kboi kbok kboo kbrb kbrd kbre kbri kbrk kbro kdbb kdbi kdbr kddb kddd kddi kddk kddr kdeb kdei kdio kdkb kdkd kdkk kdko kdkr kdoe kdok kdrb kdri kdro kebb kebe kebi kebr kedb kedd kede kedi kedo kedr keed keek keer keib keid keii keik keio keir kekb keke keki keko keok ker- kerb kere keri kerk kero kerr kibb kibe kibi kibo kibr kidb kidd kide kidi kidk kido kidr kier kiid kiii kiik kikd kiki kikk kiko kikr kiod kioe kioi kiok kioo kirb kiri kirk kiro kirr kkbb kkbd kkbe kkbi kkbo kkbr kkdd kkdo kked kkid kkik kkkk kkob kkoo kkor kkrb kkre kkrk kkro kkrr kobb kobe kobi kobk kobo kobr kode kodi kodk kodo koed koei koii koir kokb koke koki kokk koko kokr koob kooi kook kooo koor korb kord kore kori kork koro korr krbb krbd krbe krbi krbk krbr krdd krde krdo krdr kreb kred kree krei krek kreo krib krid krik krio krkd krke krki krkk krko krkr krob krod kroe kroi krok kroo kror krrb krre krri krrk krro krrr o-eo obbo obed ober obid obie obkb oboe oboi obok obor obre obri obro odbo oddd oddi oded odei odeo oder odie odio odir odoo odor oedo oeid oere oido oier oiii oike oiko oire oked oker okie okir okko okok okor okre okro oobe oobi oodi ooer ooid oooo oord oore orbb orbe orbi orbo orde ordo ore- oreb ored orek oreo orer ori- orid orie orio orke orko oro- oroe orok oror orri orro rbbb rbbr rder rdio rebb rebe rebk rebo redd rede redi redo redr reeb reed reek reid reii reik reir reke reki reko reod rerd rere reri rero rib- ribe ribo ridd ride ridi rido ried riek rier rike riki rikk rire riri rob- robb robe robi robo rodd rode rodi rodo roed roer roid roik roio roir roke roki rokk roko rokr roob rood rooi rook roor rore rori rork roro rred rrrr