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 bevo bobb bobe bobo bodb bode bodo boee boeo boer boke boko boob bood booe book boor bor- bord bore bork boro borr bove bovo brdo breb bred bree brek breo brer brev brkb brob brod broe brok broo bror brrr d-bo dddd ddre debe dedd dede dedo deeb deed deek deer deev dek- deke deor der- derb dere derk dero derr derv deve devo dobb dobe dod- dodd dode dodo doek doer doke doko doob dood dook door dord dore dork doro dorr dove dred dree drek drev drob drod dvdr dvor ebbo ebbr ebed eber eboe eboo ebor ebro edde eddo ede- eder edod edve eede eeee eeke eero ekeb eked ekek eker eode eore erbb erbe erde ereb ered erer erev erke erob erod eroe eroo erre erro erve evdb ever evoe evoo evre evvk kbbb kbbd kbbe kbbk kbbo kbbr kbdb kbde kbdo kbdr kbdv kbeb kbed kbee kbek kbeo kber kbev kbkb kbkk kbko kbkr kbkv kbob kbod kboe kbok kboo kbov kbrb kbrd kbre kbrk kbro kbrv kbvb kbvo kbvr kdbb kdbr kdbv kddb kddd kddk kddr kdeb kdkb kdkd kdkk kdko kdkr kdoe kdok kdov kdrb kdro kdrv kdvb kdvr kdvv kebb kebe kebr kedb kedd kede kedo kedr keed keek keer kekb keke keko keok ker- kerb kere kerk kero kerr kerv keve kkbb kkbd kkbe kkbo kkbr kkdd kkdo kkdv kked kkkk kkob kkoo kkor kkov kkrb kkre kkrk kkro kkrr kkrv kkvr kkvv kobb kobe kobk kobo kobr kode kodk kodo kodv koed kokb koke kokk koko kokr koob kook kooo koor koov korb kord kore kork koro korr korv kove kovk kovo kovr krbb krbd krbe krbk krbr krdd krde krdo krdr kreb kred kree krek kreo krev krkd krke krkk krko krkr krkv krob krod kroe krok kroo kror krov krrb krre krrk krro krrr krvb krve krvk krvo krvr krvv kvbr kver kvob kvod kvoe kvok kvoo kvor kvov kvre kvro kvrr kvrv kvvr kvvv 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 orve orvr ovde ovee over ovo- ovod ovoo ovre rbbb rbbr rder rdev rebb rebe rebk rebo redd rede redo redr reeb reed reek reev reke reko reod rerd rere rero revd reve revo rob- robb robe robo rodd rode rodo roed roer roev roke rokk roko rokr roob rood rook roor rore rork roro rove rovo rred rrrr rved rver vder vdre vede vedo veer veke veor ver- verb verd vere verk vero veve vevo vkor vode vodo voer voke voor vor- vord vore voro vovk vred vreo vver vvob vvvv