bbbb bbdd bbdo bbeb bd-r bebb bebe bebo bede bedo beeb beed beek beer beke beko beo- beod beok beor berd bere berk bero berr bobb bobe bobo bodb bode bodo boee boeo boer boke boko boob bood booe book boor bor- bord bore bork boro borr brdo breb bred bree brek breo brer brkb brob brod broe brok broo bror brrr d-bo dddd ddre debe dedd dede dedo deeb deed deek deer dek- deke deor der- derb dere derk dero derr dobb dobe dod- dodd dode dodo doek doer doke doko doob dood dook door dord dore dork doro dorr dred dree drek drob drod ebbo ebbr ebed eber eboe eboo ebor ebro edde eddo ede- eder edod eede eeee eeke eero ekeb eked ekek eker eode eore erbb erbe erde ereb ered erer erke erob erod eroe eroo erre erro kbbb kbbd kbbe kbbk kbbo kbbr kbdb kbde kbdo kbdr kbeb kbed kbee kbek kbeo kber kbkb kbkk kbko kbkr kbob kbod kboe kbok kboo kbrb kbrd kbre kbrk kbro kdbb kdbr kddb kddd kddk kddr kdeb kdkb kdkd kdkk kdko kdkr kdoe kdok kdrb kdro kebb kebe kebr kedb kedd kede kedo kedr keed keek keer kekb keke keko keok ker- kerb kere kerk kero kerr kkbb kkbd kkbe kkbo kkbr kkdd kkdo kked kkkk kkob kkoo kkor kkrb kkre kkrk kkro kkrr kobb kobe kobk kobo kobr kode kodk kodo koed kokb koke kokk koko kokr koob kook kooo koor korb kord kore kork koro korr krbb krbd krbe krbk krbr krdd krde krdo krdr kreb kred kree krek kreo krkd krke krkk krko krkr krob krod kroe krok kroo kror krrb krre krrk krro krrr o-eo obbo obed ober obkb oboe obok obor obre obro odbo oddd oded odeo oder odoo odor oedo oere oked oker okko okok okor okre okro oobe ooer oooo oord oore orbb orbe orbo orde ordo ore- oreb ored orek oreo orer orke orko oro- oroe orok oror orro rbbb rbbr rder rebb rebe rebk rebo redd rede redo redr reeb reed reek reke reko reod rerd rere rero rob- robb robe robo rodd rode rodo roed roer roke rokk roko rokr roob rood rook roor rore rork roro rred rrrr