rarer arrer rraer rraer arrer rarer raerr arerr rearr erarr aerrr earrr rrear rrear rerar errar rerar errar arerr raerr aerrr earrr rearr erarr rarre arrre rrare rrare arrre rarre rarre arrre rrare rrare arrre rarre rrrae rrrae rrrae rrrae rrrae rrrae arrre rarre arrre rarre rrare rrare raerr arerr rearr erarr aerrr earrr rarer arrer rraer rraer arrer rarer rerar errar rrear rrear errar rerar aerrr earrr arerr raerr erarr rearr rrera rrera rerra errra rerra errra rrrea rrrea rrrea rrrea rrrea rrrea rerra errra rrera rrera errra rerra rerra errra rrera rrera errra rerra arerr raerr aerrr earrr rearr erarr arrer rarer arrer rarer rraer rraer aerrr earrr arerr raerr erarr rearr rerar errar rrear rrear errar rerar
Note: these 'words' (valid or invalid) are all the permutations of the word rarer. These words are obtained by scrambling the letters in rarer.