acrhs carhs archs rachs crahs rcahs achrs cahrs ahcrs hacrs chars hcars arhcs rahcs ahrcs harcs rhacs hracs crhas rchas chras hcras rhcas hrcas acrsh carsh arcsh racsh crash rcash acsrh casrh ascrh sacrh csarh scarh arsch rasch asrch sarch rsach srach crsah rcsah csrah scrah rscah srcah achsr cahsr ahcsr hacsr chasr hcasr acshr cashr aschr sachr csahr scahr ahscr hascr ashcr sahcr hsacr shacr chsar hcsar cshar schar hscar shcar arhsc rahsc ahrsc harsc rhasc hrasc arshc rashc asrhc sarhc rsahc srahc ahsrc hasrc ashrc sahrc hsarc sharc rhsac hrsac rshac srhac hsrac shrac crhsa rchsa chrsa hcrsa rhcsa hrcsa crsha rcsha csrha scrha rscha srcha chsra hcsra cshra schra hscra shcra rhsca hrsca rshca srhca hsrca shrca
Note: these 'words' (valid or invalid) are all the permutations of the word acrhs. These words are obtained by scrambling the letters in acrhs.