seyen esyen syeen yseen eysen yesen seeyn eseyn seeyn eseyn eesyn eesyn syeen yseen seyen esyen yesen eysen eyesn yeesn eeysn eeysn yeesn eyesn seyne esyne syene ysene eysne yesne senye esnye sneye nseye ensye nesye synee ysnee snyee nsyee ynsee nysee eynse yense enyse neyse ynese nyese seeny eseny seeny eseny eesny eesny seney esney sneey nseey ensey nesey seney esney sneey nseey ensey nesey eensy eensy enesy neesy enesy neesy syene ysene seyne esyne yesne eysne synee ysnee snyee nsyee ynsee nysee senye esnye sneye nseye ensye nesye yense eynse ynese nyese enyse neyse eyens yeens eeyns eeyns yeens eyens eynes yenes enyes neyes ynees nyees eenys eenys eneys neeys eneys neeys yenes eynes ynees nyees enyes neyes
Note: these 'words' (valid or invalid) are all the permutations of the word seyen. These words are obtained by scrambling the letters in seyen.