sowfs oswfs swofs wsofs owsfs wosfs sofws osfws sfows fsows ofsws fosws swfos wsfos sfwos fswos wfsos fwsos owfss wofss ofwss fowss wfoss fwoss sowsf oswsf swosf wsosf owssf wossf soswf osswf ssowf ssowf osswf soswf swsof wssof sswof sswof wssof swsof owssf wossf oswsf sowsf wsosf swosf sofsw osfsw sfosw fsosw ofssw fossw sosfw ossfw ssofw ssofw ossfw sosfw sfsow fssow ssfow ssfow fssow sfsow ofssw fossw osfsw sofsw fsosw sfosw swfso wsfso sfwso fswso wfsso fwsso swsfo wssfo sswfo sswfo wssfo swsfo sfswo fsswo ssfwo ssfwo fsswo sfswo wfsso fwsso wsfso swfso fswso sfwso owfss wofss ofwss fowss wfoss fwoss owsfs wosfs oswfs sowfs wsofs swofs ofsws fosws osfws sofws fsows sfows wfsos fwsos wsfos swfos fswos sfwos
Note: these 'words' (valid or invalid) are all the permutations of the word sowfs. These words are obtained by scrambling the letters in sowfs.