cocco- cococo cocoon coggon concon concur conggo congoo congor congou connon connor conoco coocoo cookoo corgon cornon coroun corour coruco coruro courr- crocco cronon cruro- cuckoo curour curror cururo gogoro gokkun gonogo googoo gooroo gorgon gorgor goroon gorron goruck gourou grocon groung grugru gugong guncon gungor gunong gunour gunung guocun gurugu gurung k-rock knock- kogoro kokoku kokong kokoon kokoro kokoun kongor kongur konnor konnur kookoo koonur korgon korgun korkor kornog korong kororo korunk koruru koukou kouoro kourou kronor kronur kucong kuknur kukoc kungur kunkur kunnur kurkcu kurkun kurogo kuroko kurung kururu ngongo nkonko nkoroo non-no noncon nonkon nonono nonoon noonoo noonor nounou nukkuu nukunu o-knon o-kung occour ogongo okongo oncorn onogur ookroo oooooo orccon orokon orongo orrock orrour ouroun rockon rococo rognon rokkor rokuko rokuro ronggo ronnon ronron roogoo roucou rougon rounou run-on ruocco ucuncu uncock uncook uncork uncorn uncurk ungogo unnock unrung