pumil upmil pmuil mpuil umpil mupil puiml upiml piuml ipuml uipml iupml pmiul mpiul pimul ipmul mipul impul umipl muipl uimpl iumpl miupl imupl pumli upmli pmuli mpuli umpli mupli pulmi uplmi plumi lpumi ulpmi lupmi pmlui mplui plmui lpmui mlpui lmpui umlpi mulpi ulmpi lumpi mlupi lmupi puilm upilm piulm ipulm uiplm iuplm pulim uplim pluim lpuim ulpim lupim pilum iplum plium lpium ilpum lipum uilpm iulpm ulipm luipm ilupm liupm pmilu mpilu pimlu ipmlu miplu implu pmliu mpliu plmiu lpmiu mlpiu lmpiu pilmu iplmu plimu lpimu ilpmu lipmu milpu imlpu mlipu lmipu ilmpu limpu umilp muilp uimlp iumlp miulp imulp umlip mulip ulmip lumip mluip lmuip uilmp iulmp ulimp luimp ilump liump milup imlup mliup lmiup ilmup limup
Note: these 'words' (valid or invalid) are all the permutations of the word pumil. These words are obtained by scrambling the letters in pumil.