rupee urpee rpuee pruee upree puree ruepe urepe reupe erupe uerpe eurpe rpeue preue repue erpue perue eprue upere puere uepre eupre peure epure rupee urpee rpuee pruee upree puree ruepe urepe reupe erupe uerpe eurpe rpeue preue repue erpue perue eprue upere puere uepre eupre peure epure rueep ureep reuep eruep uerep eurep rueep ureep reuep eruep uerep eurep reeup ereup reeup ereup eerup eerup ueerp euerp ueerp euerp eeurp eeurp rpeeu preeu repeu erpeu pereu epreu rpeeu preeu repeu erpeu pereu epreu reepu erepu reepu erepu eerpu eerpu peeru eperu peeru eperu eepru eepru upeer pueer ueper euper peuer epuer upeer pueer ueper euper peuer epuer ueepr euepr ueepr euepr eeupr eeupr peeur epeur peeur epeur eepur eepur
Note: these 'words' (valid or invalid) are all the permutations of the word rupee. These words are obtained by scrambling the letters in rupee.