abaft baaft aabft aabft baaft abaft abfat bafat afbat fabat bfaat fbaat aafbt aafbt afabt faabt afabt faabt bafat abfat bfaat fbaat afbat fabat abatf baatf aabtf aabtf baatf abatf abtaf bataf atbaf tabaf btaaf tbaaf aatbf aatbf atabf taabf atabf taabf bataf abtaf btaaf tbaaf atbaf tabaf abfta bafta afbta fabta bfata fbata abtfa batfa atbfa tabfa btafa tbafa aftba fatba atfba tafba ftaba tfaba bftaa fbtaa btfaa tbfaa ftbaa tfbaa aaftb aaftb afatb faatb afatb faatb aatfb aatfb atafb taafb atafb taafb aftab fatab atfab tafab ftaab tfaab aftab fatab atfab tafab ftaab tfaab bafta abfta bfata fbata afbta fabta batfa abtfa btafa tbafa atbfa tabfa bftaa fbtaa btfaa tbfaa ftbaa tfbaa aftba fatba atfba tafba ftaba tfaba
Note: these 'words' (valid or invalid) are all the permutations of the word abaft. These words are obtained by scrambling the letters in abaft.