roule orule ruole urole ourle uorle rolue orlue rloue lroue olrue lorue ruloe urloe rluoe lruoe ulroe luroe oulre uolre olure loure ulore luore rouel oruel ruoel uroel ourel uorel roeul oreul reoul eroul oerul eorul rueol ureol reuol eruol uerol eurol ouerl uoerl oeurl eourl ueorl euorl roleu orleu rloeu lroeu olreu loreu roelu orelu reolu erolu oerlu eorlu rleou lreou relou erlou lerou elrou oleru loeru oelru eolru leoru eloru ruleo urleo rlueo lrueo ulreo lureo ruelo urelo reulo erulo uerlo eurlo rleuo lreuo reluo erluo leruo elruo ulero luero uelro eulro leuro eluro ouler uoler oluer louer uloer luoer ouelr uoelr oeulr eoulr ueolr euolr oleur loeur oelur eolur leour elour uleor lueor uelor eulor leuor eluor
Note: these 'words' (valid or invalid) are all the permutations of the word roule. These words are obtained by scrambling the letters in roule.