wilep iwlep wliep lwiep ilwep liwep wielp iwelp weilp ewilp iewlp eiwlp wleip lweip welip ewlip lewip elwip ilewp liewp ielwp eilwp leiwp eliwp wilpe iwlpe wlipe lwipe ilwpe liwpe wiple iwple wpile pwile ipwle piwle wlpie lwpie wplie pwlie lpwie plwie ilpwe lipwe iplwe pilwe lpiwe pliwe wiepl iwepl weipl ewipl iewpl eiwpl wipel iwpel wpiel pwiel ipwel piwel wepil ewpil wpeil pweil epwil pewil iepwl eipwl ipewl piewl epiwl peiwl wlepi lwepi welpi ewlpi lewpi elwpi wlpei lwpei wplei pwlei lpwei plwei wepli ewpli wpeli pweli epwli pewli lepwi elpwi lpewi plewi eplwi pelwi ilepw liepw ielpw eilpw leipw elipw ilpew lipew iplew pilew lpiew pliew ieplw eiplw ipelw pielw epilw peilw lepiw elpiw lpeiw pleiw epliw peliw
Note: these 'words' (valid or invalid) are all the permutations of the word wilep. These words are obtained by scrambling the letters in wilep.