abris baris arbis rabis brais rbais abirs bairs aibrs iabrs biars ibars aribs raibs airbs iarbs riabs irabs brias rbias biras ibras ribas irbas abrsi barsi arbsi rabsi brasi rbasi absri basri asbri sabri bsari sbari arsbi rasbi asrbi sarbi rsabi srabi brsai rbsai bsrai sbrai rsbai srbai abisr baisr aibsr iabsr biasr ibasr absir basir asbir sabir bsair sbair aisbr iasbr asibr saibr isabr siabr bisar ibsar bsiar sbiar isbar sibar arisb raisb airsb iarsb riasb irasb arsib rasib asrib sarib rsaib sraib aisrb iasrb asirb sairb isarb siarb risab irsab rsiab sriab israb sirab brisa rbisa birsa ibrsa ribsa irbsa brsia rbsia bsria sbria rsbia srbia bisra ibsra bsira sbira isbra sibra risba irsba rsiba sriba isrba sirba
Note: these 'words' (valid or invalid) are all the permutations of the word abris. These words are obtained by scrambling the letters in abris.