bbbee bcell bebel becel becue beebe beele beene belce belec belee belen bellb belle belue bence bene- benne bennu benue benun beule bleen bleue bubbe buben buble buell bulb- bulen bull- bulle bulul bulun bunce bunne bunun cblue ccccc ccell cebec cecun ceele ceene celeb cell- celle cence cenel ceneu cleen clene clubb clue- clune cnnnn cubbe cubeb cubel cubub culbe culle cullu cunel cunne cuuel ebble ebell ebene eblul ebull eccen eccle eeeee eence elben elele elene ellel ellen ellul elnec elulu enbun enlen eucen euell eulen lblnc lcecn lebce lebec lebel leben lecce leece leell leleu lelle lence lenne leuc- leuce lubbe luble lubne lubun lucee lucun lueen luen lulec lulle luluc lulul lunel lunne ncell ncube nebel neble neblu neece neele neelu nelle nellu neuen neueu neune nnebe nu-nu nubel nuble nuell nulle nunce nunun u-cee ubble ubeen uccel uccle ucell uclue uelen ulene ululu uncle unnun uuuuu