raser arser rsaer sraer asrer sarer raesr aresr reasr erasr aersr earsr rsear srear resar ersar serar esrar aserr saerr aesrr easrr searr esarr rasre arsre rsare srare asrre sarre rarse arrse rrase rrase arrse rarse rsrae srrae rrsae rrsae srrae rsrae asrre sarre arsre rasre srare rsare raers arers rears erars aerrs earrs rares arres rraes rraes arres rares reras erras rreas rreas erras reras aerrs earrs arers raers erars rears rsera srera resra ersra serra esrra rsrea srrea rrsea rrsea srrea rsrea rersa errsa rresa rresa errsa rersa serra esrra srera rsera ersra resra aserr saerr aesrr easrr searr esarr asrer sarer arser raser sraer rsaer aersr earsr aresr raesr erasr reasr serar esrar srear rsear ersar resar
Note: these 'words' (valid or invalid) are all the permutations of the word raser. These words are obtained by scrambling the letters in raser.