scree csree srcee rscee crsee rcsee scere csere secre escre cesre ecsre srece rsece serce esrce resce ersce crese rcese cerse ecrse recse ercse scree csree srcee rscee crsee rcsee scere csere secre escre cesre ecsre srece rsece serce esrce resce ersce crese rcese cerse ecrse recse ercse sceer cseer secer escer ceser ecser sceer cseer secer escer ceser ecser seecr esecr seecr esecr eescr eescr ceesr ecesr ceesr ecesr eecsr eecsr sreec rseec serec esrec resec ersec sreec rseec serec esrec resec ersec seerc eserc seerc eserc eesrc eesrc reesc eresc reesc eresc eersc eersc crees rcees ceres ecres reces erces crees rcees ceres ecres reces erces ceers ecers ceers ecers eecrs eecrs reecs erecs reecs erecs eercs eercs
Note: these 'words' (valid or invalid) are all the permutations of the word scree. These words are obtained by scrambling the letters in scree.