kench eknch knech nkech enkch nekch kecnh ekcnh kcenh ckenh ecknh ceknh knceh nkceh kcneh ckneh nckeh cnkeh enckh neckh ecnkh cenkh ncekh cnekh kenhc eknhc knehc nkehc enkhc nekhc kehnc ekhnc khenc hkenc ehknc heknc knhec nkhec khnec hknec nhkec hnkec enhkc nehkc ehnkc henkc nhekc hnekc kechn ekchn kcehn ckehn eckhn cekhn kehcn ekhcn khecn hkecn ehkcn hekcn kchen ckhen khcen hkcen chken hcken echkn cehkn ehckn heckn chekn hcekn knche nkche kcnhe cknhe nckhe cnkhe knhce nkhce khnce hknce nhkce hnkce kchne ckhne khcne hkcne chkne hckne nchke cnhke nhcke hncke chnke hcnke enchk nechk ecnhk cenhk ncehk cnehk enhck nehck ehnck henck nheck hneck echnk cehnk ehcnk hecnk chenk hcenk nchek cnhek nhcek hncek chnek hcnek
Note: these 'words' (valid or invalid) are all the permutations of the word kench. These words are obtained by scrambling the letters in kench.