bbbb bbeb bbpr bebb bebe bebo beeb beej beep beer beo- beor bepo bere bero berr beze bobb bobe bobo boee boeo boep boer bojo boob booe boop boor booz bope bopp bor- bore borj boro borr borz bozo bpoe breb bree breo brep brer brez brje brob broe broo bror broz brrr bzer bzoe bzzz ebbo ebbr eber eboe eboo ebor ebpo ebro eeee eero eeze ejer ejob ejoo eore epee eper epor eppo eppp eprb epro eprp erbb erbe ereb erer erez erob eroe eroo erpe erre erro ezer ezop ezzo j-ro jbob jebb jebe jeep jeer jeez jere jero jeze jobe jobo joee jojo joor jope jore joro joze jpop jrbr o-eo obbo ober oboe obor obre obro oere oobe ooer oooo oore ooze opep oper opo- opoj opor oppo orbb orbe orbo ore- oreb oreo orer oro- oroe oror oroz orpe orro orzo ozee ozer peep peer peje peor pepe pepo per- pere pero perp perr peze pezo pobo poer pojo poop poor pop- pope popo popp porb pore poro porr porz poze pozo pper pppo pppp pre- preb pree prep prez pro- prob proe proj proo prop proz rbbb rbbr rbpj rebb rebe rebo reeb reep reop repe repo repp repr rere rero reze rob- robb robe robo roer roje rojo roob roop roor rooz rope ropo rore roro roze rozz rpob rpoe rrrr z-ro zber zboj zebe zeep zeje zepo zepp zero zeze zobo zoo- zoop zope zorb zore zoro zozo zrze zzzz