levis elvis lveis vleis evlis velis leivs elivs lievs ilevs eilvs ielvs lvies vlies lives ilves viles ivles evils veils eivls ievls viels ivels levsi elvsi lvesi vlesi evlsi velsi lesvi elsvi lsevi slevi eslvi selvi lvsei vlsei lsvei slvei vslei svlei evsli vesli esvli sevli vseli sveli leisv elisv liesv ilesv eilsv ielsv lesiv elsiv lseiv sleiv esliv seliv lisev ilsev lsiev sliev islev silev eislv ieslv esilv seilv iselv sielv lvise vlise livse ilvse vilse ivlse lvsie vlsie lsvie slvie vslie svlie lisve ilsve lsive slive islve silve visle ivsle vsile svile isvle sivle evisl veisl eivsl ievsl viesl ivesl evsil vesil esvil sevil vseil sveil eisvl iesvl esivl seivl isevl sievl visel ivsel vsiel sviel isvel sivel
Note: these 'words' (valid or invalid) are all the permutations of the word levis. These words are obtained by scrambling the letters in levis.