c-cor c-p-c c-pop ccccc cfour cnnfn cnnnn co-co co-np co-op cocc- cocco cocon cocur cofur conco concr confu connu cono- conon conop conor coppo copr- copro copur corfo corfu corno cornu coro- coron corop corun couco couru cpcfc croco croon croop cropc cropo croun croup cruor cunco cuoco cupof cupon cupr- cupro curno curro curup fcron forno forro forur fouro frcpc froop frorn froup fu-fu fuco- fucun fuoco fuorn furo- furor n-p-n nconf nnfcc nnooo no-no no-op nofor nofou nofun non-u nonno nonop nonpc noonu nopun norco noroc noron norro norun nroff nu-nu nucor nunon nunun nuoro nupur nurfc nurun occur ocorn offof offon offun ofono oforn ofour ofpop onco- onoff onoon onorn onour onpop ooooo opcon oppon orcon orcop orfor ornon oroco orono oruro ouoro ourno p-n-p pforp po-on po-po pocno pocop ponnu ponor ponup poopo popco popon popop poppo popup porcn porco porcu porn- porno poro- poron porro porur pouff proff proof proor prop- propn propp propr prun- pruno punon puppo puro- r-co- ro-ro rocco rocor rocou rofor ronco ronno rprop ruffo rufo- runcu runo- runof runon runup u-con u-pop uconn ufofu uncon uncor uncup unfun unfur unnun unnur unoor unorn unrun unurn uofnc upfor upnor upoff uppon uprun urour urucu uuuuu