noops onops noops onops oonps oonps nopos onpos npoos pnoos opnos ponos nopos onpos npoos pnoos opnos ponos oopns oopns opons poons opons poons noosp onosp noosp onosp oonsp oonsp nosop onsop nsoop snoop osnop sonop nosop onsop nsoop snoop osnop sonop oosnp oosnp osonp soonp osonp soonp nopso onpso nposo pnoso opnso ponso nospo onspo nsopo snopo osnpo sonpo npsoo pnsoo nspoo snpoo psnoo spnoo opsno posno ospno sopno psono spono nopso onpso nposo pnoso opnso ponso nospo onspo nsopo snopo osnpo sonpo npsoo pnsoo nspoo snpoo psnoo spnoo opsno posno ospno sopno psono spono oopsn oopsn oposn poosn oposn poosn oospn oospn osopn soopn osopn soopn opson poson ospon sopon psoon spoon opson poson ospon sopon psoon spoon
Note: these 'words' (valid or invalid) are all the permutations of the word noops. These words are obtained by scrambling the letters in noops.