bachs abchs bcahs cbahs acbhs cabhs bahcs abhcs bhacs hbacs ahbcs habcs bchas cbhas bhcas hbcas chbas hcbas achbs cahbs ahcbs hacbs chabs hcabs bacsh abcsh bcash cbash acbsh cabsh basch absch bsach sbach asbch sabch bcsah cbsah bscah sbcah csbah scbah acsbh casbh ascbh sacbh csabh scabh bahsc abhsc bhasc hbasc ahbsc habsc bashc abshc bsahc sbahc asbhc sabhc bhsac hbsac bshac sbhac hsbac shbac ahsbc hasbc ashbc sahbc hsabc shabc bchsa cbhsa bhcsa hbcsa chbsa hcbsa bcsha cbsha bscha sbcha csbha scbha bhsca hbsca bshca sbhca hsbca shbca chsba hcsba cshba schba hscba shcba achsb cahsb ahcsb hacsb chasb hcasb acshb cashb aschb sachb csahb scahb ahscb hascb ashcb sahcb hsacb shacb chsab hcsab cshab schab hscab shcab
Note: these 'words' (valid or invalid) are all the permutations of the word bachs. These words are obtained by scrambling the letters in bachs.