bbbb bbdd bbdo bbeb bbpr bd-r bdii bebb bebe bebi bebo bede bedi bedo beeb beed beep beer beir beo- beod beor bepo berd bere beri bero berr bibb bibe bibi bibo bide bidi bido bidr bieb bied bier bio- bioi bipp birb bird bire biri biro birr bobb bobe bobi bobo bodb bode bodi bodo boee boeo boep boer boi- boid boie boii boob bood booe boop boor bope bopp bor- bord bore bori boro borr bpoe bprd brdo breb bred bree brei breo brep brer brid brie brio brob brod broe broo bror brrr d-bo dbpd dddd ddie ddpo ddre debe debi dedd dede dedi dedo deeb deed deep deer deid deie deip deir deop deor depe depo depp depr der- derb dere deri dero derp derr dibb dibe dibo dibp dide didi dido dieb died diep dier diii diop dior dipe dipo dipp dird dire dirr dobb dobe dobi dod- dodd dode dodi dodo doer doid doob dood doop door dope dopo dopp dopr dord dore dori doro dorp dorr dper dpie dred dree drei drib drie drip drob drod drop ebbo ebbr ebed eber ebid eboe eboo ebor ebpo ebro edde eddi eddo eddp ede- edei eder edie edip edod eede eeee eero eid- eide eidi eido eidr eied eiei eier eipo eipr eird eire eode eoir eore eori epee eper epi- epid epie epip epod epor eppo eppp eprb epro eprp erbb erbe erde erdi ereb ered erei erer erie erio erob erod eroe eroi eroo erpe 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 iiop iobi iod- iodd iode iodo ioee ioii ioio iooi iooo iore iori ipdi iper ipid ipie ipod ipoe ipop ippo ippr ipri irbe irbp irdo irdp ired iree irer iri- irid irie irio irip irob irod irop irpe irre irri o-eo obbo obed ober obid obie oboe oboi obor obre obri obro odbo oddd oddi oded odei odeo oder odie odio odir odoo odop odor odrp oedo oeid oere oido oier oiii oire oobe oobi oodi ooer ooid oooo oord oore oped opei opep oper opie opii opio opo- opor oppi oppo orbb orbe orbi orbo orde ordo ore- oreb ored oreo orer ori- orid orie orio oro- oroe oror orpe orpi orri orro pbed pdpr ped- pede pedi pedo peed peep peer peio peip peir peor pepd pepe pepi pepo per- perd pere peri pero perp perr pibb pibi pide pido pied piep pier piip piob pipe pipi pipo pipp pire piri piro pirr pobo pod- podd pode podi podo poed poer poid poio pood poop poor pop- pope popi popo popp porb pore pori poro porr pper ppib ppid ppie ppod pppd pppo pppp pre- preb pred pree prep pri- prid prie prii pro- prob prod proe proo prop prpd prrd prri rbbb rbbr rdbp rder rdio rebb rebe rebo redd rede redi redo redr reeb reed reep reid reii reir reod reop repe repi repo repp repr rerd rere reri rero rib- ribe ribo ridd ride ridi rido ried riep rier ripd ripe ripi ripp ripr rire riri rob- robb robe robi robo rodd rode rodi rodo roed roer roid roio roir roob rood rooi roop roor rope ropo rore rori roro rpdp rpii rpob rpoe rred rrrr