c-cor c-p-c c-pop ccccc cnnnn co-co co-np co-op cocc- cocco cocon cocur cokk- conck conco concr connu cono- conon conop conor coppo copr- copro copur corno cornu coro- coron corop corun couco couru crock croco cronk crook croon croop cropc cropo crouk croun croup cruck crunk cruor cucuk cukor cunco cuoco cupon cupr- cupro curno curro curup k-p-r k-pop knock knokk knoop knork knorr knuck knurr ko-ko kocon kokko kokor kokou kokur konno konnu konro konur koonu koorn kooru kopru korck korku korno koron korop koror korpo korro koruk korun korup kouno krnuo krock kronk kroon kropp kroun krunk krupp kruun kucuk kukko kukok kukup kukur kunku kunur kupon kupur kurku kuruc kuruk kurup n-p-n nkpor nnooo no-no no-op nokko nokon non-u nonno nonop nonpc noonu nopun norco noroc norok noron norro norun nu-nu nucor nunon nunun nuoro nupur nuruk nurun occur ockro ocorn okkur okoc okoro okuku okuru onco- onoon onorn onour onpop ooooo opcon opoku oppon orcon orcop ornon oroco orono oruku oruro oukup ouoro ourno p-n-p pcock po-on po-po pocko pocno pocok pocop pokou ponnu ponor ponup poopo poork popco popon popop poppo popup porcn porco porcu porn- porno poro- poron porro porur pouck prock pronk proor prop- propn propp propr prun- pruno pucko punck punon punuk puppo purku puro- purok r-co- ro-ro rocco rockn rocko rocor rocou rokkk rokon ronco ronk- ronko ronno ronok rouko rprop runcu runo- runon runup u-con u-pop uconn ukpor ukrop uncok uncon uncor uncup unkur unnun unnur unoor unorn unrun unurn upnor uppon uprun urkun urnok urour urucu uuork uuuuu