uiopl iuopl uoipl ouipl ioupl oiupl uipol iupol upiol puiol ipuol piuol uopil oupil upoil puoil opuil pouil iopul oipul ipoul pioul opiul poiul uiolp iuolp uoilp ouilp ioulp oiulp uilop iulop uliop luiop iluop liuop uolip oulip uloip luoip oluip louip iolup oilup iloup lioup oliup loiup uiplo iuplo upilo puilo ipulo piulo uilpo iulpo ulipo luipo ilupo liupo uplio pulio ulpio lupio pluio lpuio ipluo piluo ilpuo lipuo pliuo lpiuo uopli oupli upoli puoli opuli pouli uolpi oulpi ulopi luopi olupi loupi uploi puloi ulpoi lupoi pluoi lpuoi oplui polui olpui lopui ploui lpoui ioplu oiplu ipolu piolu opilu poilu iolpu oilpu ilopu liopu olipu loipu iplou pilou ilpou lipou pliou lpiou opliu poliu olpiu lopiu ploiu lpoiu
Note: these 'words' (valid or invalid) are all the permutations of the word uiopl. These words are obtained by scrambling the letters in uiopl.