sdayn dsayn sadyn asdyn dasyn adsyn sdyan dsyan sydan ysdan dysan ydsan saydn asydn syadn ysadn aysdn yasdn daysn adysn dyasn ydasn aydsn yadsn sdany dsany sadny asdny dasny adsny sdnay dsnay snday nsday dnsay ndsay sandy asndy snady nsady ansdy nasdy dansy adnsy dnasy ndasy andsy nadsy sdyna dsyna sydna ysdna dysna ydsna sdnya dsnya sndya nsdya dnsya ndsya synda ysnda snyda nsyda ynsda nysda dynsa ydnsa dnysa ndysa yndsa nydsa saynd asynd syand ysand aysnd yasnd sanyd asnyd snayd nsayd ansyd nasyd synad ysnad snyad nsyad ynsad nysad aynsd yansd anysd naysd ynasd nyasd dayns adyns dyans ydans aydns yadns danys adnys dnays ndays andys nadys dynas ydnas dnyas ndyas yndas nydas aynds yands anyds nayds ynads nyads
Note: these 'words' (valid or invalid) are all the permutations of the word sdayn. These words are obtained by scrambling the letters in sdayn.