bbbee bcell bebel becel becue beebe beele beffe belce belec belee belef bellb belle belue beule bleue bluff bubbe buble buell buffe bufle bulb- bull- bulle bulul cbeff cblue ccccc ccell cclef cebec ceele cefcu celeb cell- celle cfu-e clcff cleef clefe clubb clue- clufe cluff cubbe cubeb cubel cubub cufeu cuffe culbe culle cullu cuuel ebble ebell eblul ebull eccle eeeee elele ellel ellul elulu euell fclef febel feble feele felce felle feule fluce fluff fu-fu fulbe fulle fullf lebce lebec lebel lecce leece leell lefeu leffe leful leleu lelle leuc- leuce lubbe luble lucee lulec lulle luluc lulul u-cee ubble uccel uccle ucell uclue uelfe ululu uuuuu