ochrs cohrs ohcrs hocrs chors hcors ocrhs corhs orchs rochs crohs rcohs ohrcs horcs orhcs rohcs hrocs rhocs chros hcros crhos rchos hrcos rhcos ochsr cohsr ohcsr hocsr chosr hcosr ocshr coshr oschr sochr csohr scohr ohscr hoscr oshcr sohcr hsocr shocr chsor hcsor cshor schor hscor shcor ocrsh corsh orcsh rocsh crosh rcosh ocsrh cosrh oscrh socrh csorh scorh orsch rosch osrch sorch rsoch sroch crsoh rcsoh csroh scroh rscoh srcoh ohrsc horsc orhsc rohsc hrosc rhosc ohsrc hosrc oshrc sohrc hsorc shorc orshc roshc osrhc sorhc rsohc srohc hrsoc rhsoc hsroc shroc rshoc srhoc chrso hcrso crhso rchso hrcso rhcso chsro hcsro cshro schro hscro shcro crsho rcsho csrho scrho rscho srcho hrsco rhsco hsrco shrco rshco srhco
Note: these 'words' (valid or invalid) are all the permutations of the word ochrs. These words are obtained by scrambling the letters in ochrs.