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