bbbb bbdd bbdo bbeb bd-r bddh bebb bebe bebo bede bedo beeb beed beer behr beo- beod beor berd bere bero berr bevo bher bhor bobb bobe bobo bodb bode bodh bodo boee boeo boer bohd boho bohr boob bood booe booh boor bor- bord bore borh boro borr bove bovo brdo breb bred bree breo brer brev brob brod broe broh broo bror brrr d-bo dddd ddre debe dedd dede dedo deeb deed deer deev deor der- derb dere dero derr derv deve devo dhed dhee dher dhod dhor dobb dobe dod- dodd dode dodo doer dohr doob dood door dord dore doro dorr dove dred dree dreh drev drob drod droh dvdr dvor ebbo ebbr ebed eber eboe eboo ebor ebro edde eddo ede- edeh eder edod edve eede eeee eero ehdd eheh eher ehre eode eore erbb erbe erde ereb ered erer erev erob erod eroe eroo erre erro erve evdb ever evoe evoo evre hdod hebb hebe hebo hebr hedd hede hedo heeb heed heer hehe heho heor herb herd here hero herr heve hhhh hobe hobo hode hodh hodr hoed hoer hohe hoho hood hooe hoor hord hore horo horr hove hree hrob hrod o-eo obbo obed ober oboe obor obre obrh obro odbo oddd oded odeo oder odoh odoo odor oedo oere ohbe ohed ohee oher ohho ohob ohoh ohre oobe ooer ooho oooh oooo oord oore orbb orbe orbo orde ordo ore- oreb ored oreh oreo orer orhe oro- oroe oror orro orve orvr ovde ovee over ovhd ovo- ovod ovoo ovre rbbb rbbr rboh rder rdev rebb rebe rebo redd rede redh redo redr reeb reed reev rehb rehe reod rerd rere rero revd reve revo rheb rhee rheo rhob rhod rhoh rob- robb robe robo rodd rode rodo roed roer roev rohe rohr roob rood roor rore roro rove rovo rred rrrr rved rver rvvh vder vdre vede vedo veer veho veoh veor ver- verb verd vere vero veve vevo vhhh vode vodo voer voho voor vor- vord vore voro vred vreo vrhe vver vvob vvvv