ccccc ccell ccrcl ccrel ceele ceere celer cell- celle cerc- cerce cerec cerer cerre cleer clerc clere clue- cluer clurr crece creel creer crele crell creu- creue creul crrel cruce cruel crule crull crure culle cullu culur curce curel curer curle curll curlu curre cuuel eccle eeeee eeler elele ellel eller ellul elrec elulu eluru erere eucre euell euler eurel eurre lecce leece leell leere leleu lelle lerer leuc- leuce lucee lucre lucur lulec lulle luluc lulul lurer lurue recce recue recur reece reere relee relue rere- reree reuel reuer reule rucer rucul ruele ruell ruere ruler rurec ruule u-cee uccel uccle ucell uclue ulcer ullur ululu uluru urcel urelu uruce urucu uuuuu