skids ksids sikds iskds kisds iksds skdis ksdis sdkis dskis kdsis dksis sidks isdks sdiks dsiks idsks disks kidss ikdss kdiss dkiss idkss dikss skisd ksisd siksd isksd kissd ikssd sksid kssid sskid sskid kssid sksid siskd isskd ssikd ssikd isskd siskd kissd ikssd ksisd skisd isksd siksd skdsi ksdsi sdksi dsksi kdssi dkssi sksdi kssdi sskdi sskdi kssdi sksdi sdski dsski ssdki ssdki dsski sdski kdssi dkssi ksdsi skdsi dsksi sdksi sidsk isdsk sdisk dsisk idssk dissk sisdk issdk ssidk ssidk issdk sisdk sdsik dssik ssdik ssdik dssik sdsik idssk dissk isdsk sidsk dsisk sdisk kidss ikdss kdiss dkiss idkss dikss kisds iksds ksids skids iskds sikds kdsis dksis ksdis skdis dskis sdkis idsks disks isdks sidks dsiks sdiks
Note: these 'words' (valid or invalid) are all the permutations of the word skids. These words are obtained by scrambling the letters in skids.