howk ohwk hwok whok owhk wohk hokw ohkw hkow khow okhw kohw hwko whko hkwo khwo wkho kwho owkh wokh okwh kowh wkoh kwoh
Note: these 'words' (valid or invalid) are all the permutations of the word howk. These words are obtained by scrambling the letters in howk.