wowf owwf wwof wwof owwf wowf wofw owfw wfow fwow ofww foww wwfo wwfo wfwo fwwo wfwo fwwo owfw wofw ofww foww wfow fwow
Note: these 'words' (valid or invalid) are all the permutations of the word wowf. These words are obtained by scrambling the letters in wowf.