omwh mowh owmh womh mwoh wmoh omhw mohw ohmw homw mhow hmow owhm wohm ohwm howm whom hwom mwho wmho mhwo hmwo whmo hwmo
Note: these 'words' (valid or invalid) are all the permutations of the word omwh. These words are obtained by scrambling the letters in omwh.