bbbb bbdd bbdo bbeb bbpr bd-r bebb bebe bebo bede bedo beeb beed beep beer beo- beod beor bepo berd bere bero berr bevo bobb bobe bobo bodb bode bodo boee boeo boep boer boob bood booe boop boor bope bopp bor- bord bore boro borr bove bovo bpoe bprd brdo breb bred bree breo brep brer brev brob brod broe broo bror brrr d-bo dbpd dddd ddpo ddre debe dedd dede dedo deeb deed deep deer deev deop deor depe depo depp depr der- derb dere dero derp derr derv deve devo dobb dobe dod- dodd dode dodo doer doob dood doop door dope dopo dopp dopr dord dore doro dorp dorr dove dper dred dree drev drob drod drop dvdr dvor dvrp ebbo ebbr ebed eber eboe eboo ebor ebpo ebro edde eddo eddp ede- eder edod edve eede eeee eero eode eore epee eper epod epor eppo eppp eprb epro eprp erbb erbe erde ereb ered erer erev erob erod eroe eroo erpe erre erro erve evdb ever evoe evoo evop evre o-eo obbo obed ober oboe obor obre obro odbo oddd oded odeo oder odoo odop odor odrp oedo oere oevp oobe ooer oooo oord oore oped opep oper opo- opor oppo orbb orbe orbo orde ordo ore- oreb ored oreo orer oro- oroe oror orpe orro orve orvr ovde ovee over ovo- ovod ovoo ovpp ovre pbed pdpr ped- pede pedo peed peep peer peev peor pepd pepe pepo per- perd pere pero perp perr perv pobo pod- podd pode podo poed poer pood poop poor pop- pope popo popp porb pore poro porr povo ppbv pper ppod pppd pppo pppp pre- preb pred pree prep prev pro- prob prod proe proo prop prov prpd prrd rbbb rbbr rdbp rder rdev rebb rebe rebo redd rede redo redr reeb reed reep reev reod reop repe repo repp repr rerd rere rero revd reve revo revp rob- robb robe robo rodd rode rodo roed roer roev roob rood roop roor rope ropo rore roro rove rovo rpdp rpob rpoe rred rrrr rved rver vdbp vder vdre vede vedo veep veer veor vepe vepr ver- verb verd vere vero veve vevo vode vodo voer voor vor- vord vore voro vpro vred vreo vver vvob vvpb vvvv