snyes nsyes synes ysnes nyses ynses sneys nseys senys esnys nesys ensys syens ysens seyns esyns yesns eysns nyess yness neyss enyss yenss eynss snyse nsyse synse ysnse nysse ynsse snsye nssye ssnye ssnye nssye snsye sysne yssne ssyne ssyne yssne sysne nysse ynsse nsyse snyse ysnse synse snesy nsesy sensy esnsy nessy enssy snsey nssey ssney ssney nssey snsey sesny essny sseny sseny essny sesny nessy enssy nsesy snesy esnsy sensy syesn ysesn seysn esysn yessn eyssn sysen yssen ssyen ssyen yssen sysen sesyn essyn sseyn sseyn essyn sesyn yessn eyssn ysesn syesn esysn seysn nyess yness neyss enyss yenss eynss nyses ynses nsyes snyes ysnes synes nesys ensys nseys sneys esnys senys yesns eysns ysens syens esyns seyns
Note: these 'words' (valid or invalid) are all the permutations of the word snyes. These words are obtained by scrambling the letters in snyes.