pikul ipkul pkiul kpiul ikpul kipul piukl ipukl puikl upikl iupkl uipkl pkuil kpuil pukil upkil kupil ukpil ikupl kiupl iukpl uikpl kuipl ukipl piklu ipklu pkilu kpilu ikplu kiplu pilku iplku pliku lpiku ilpku lipku pkliu kpliu plkiu lpkiu klpiu lkpiu iklpu kilpu ilkpu likpu klipu lkipu piulk ipulk puilk upilk iuplk uiplk piluk ipluk pliuk lpiuk ilpuk lipuk pulik uplik pluik lpuik ulpik lupik iulpk uilpk ilupk liupk ulipk luipk pkuli kpuli pukli upkli kupli ukpli pklui kplui plkui lpkui klpui lkpui pulki uplki pluki lpuki ulpki lupki kulpi uklpi klupi lkupi ulkpi lukpi ikulp kiulp iuklp uiklp kuilp ukilp iklup kilup ilkup likup kliup lkiup iulkp uilkp ilukp liukp ulikp luikp kulip uklip kluip lkuip ulkip lukip
Note: these 'words' (valid or invalid) are all the permutations of the word pikul. These words are obtained by scrambling the letters in pikul.