corks ocrks croks rcoks orcks rocks cokrs ockrs ckors kcors okcrs kocrs crkos rckos ckros kcros rkcos krcos orkcs rokcs okrcs korcs rkocs krocs corsk ocrsk crosk rcosk orcsk rocsk cosrk ocsrk csork scork oscrk socrk crsok rcsok csrok scrok rscok srcok orsck rosck osrck sorck rsock srock coksr ocksr ckosr kcosr okcsr kocsr coskr ocskr csokr scokr osckr sockr cksor kcsor cskor sckor kscor skcor okscr koscr oskcr sokcr ksocr skocr crkso rckso ckrso kcrso rkcso krcso crsko rcsko csrko scrko rscko srcko cksro kcsro cskro sckro kscro skcro rksco krsco rskco srkco ksrco skrco orksc roksc okrsc korsc rkosc krosc orskc roskc osrkc sorkc rsokc srokc oksrc kosrc oskrc sokrc ksorc skorc rksoc krsoc rskoc srkoc ksroc skroc
Note: these 'words' (valid or invalid) are all the permutations of the word corks. These words are obtained by scrambling the letters in corks.