nocag oncag ncoag cnoag ocnag conag noacg onacg naocg anocg oancg aoncg ncaog cnaog nacog ancog canog acnog ocang coang oacng aocng caong acong nocga oncga ncoga cnoga ocnga conga nogca ongca ngoca gnoca ognca gonca ncgoa cngoa ngcoa gncoa cgnoa gcnoa ocgna cogna ogcna gocna cgona gcona noagc onagc naogc anogc oangc aongc nogac ongac ngoac gnoac ognac gonac nagoc angoc ngaoc gnaoc agnoc ganoc oagnc aognc oganc goanc agonc gaonc ncago cnago nacgo ancgo cango acngo ncgao cngao ngcao gncao cgnao gcnao nagco angco ngaco gnaco agnco ganco cagno acgno cgano gcano agcno gacno ocagn coagn oacgn aocgn caogn acogn ocgan cogan ogcan gocan cgoan gcoan oagcn aogcn ogacn goacn agocn gaocn cagon acgon cgaon gcaon agcon gacon
Note: these 'words' (valid or invalid) are all the permutations of the word nocag. These words are obtained by scrambling the letters in nocag.