rnopo nropo ronpo ornpo norpo onrpo rnpoo nrpoo rpnoo prnoo nproo pnroo ropno orpno rpono prono oprno porno nopro onpro nporo pnoro opnro ponro rnoop nroop ronop ornop norop onrop rnoop nroop ronop ornop norop onrop roonp oronp roonp oronp oornp oornp noorp onorp noorp onorp oonrp oonrp rnpoo nrpoo rpnoo prnoo nproo pnroo rnopo nropo ronpo ornpo norpo onrpo rpono prono ropno orpno porno oprno nporo pnoro nopro onpro ponro opnro ropon orpon rpoon proon opron poron roopn oropn roopn oropn oorpn oorpn rpoon proon ropon orpon poron opron oporn poorn ooprn ooprn poorn oporn nopor onpor npoor pnoor opnor ponor noopr onopr noopr onopr oonpr oonpr npoor pnoor nopor onpor ponor opnor oponr poonr oopnr oopnr poonr oponr
Note: these 'words' (valid or invalid) are all the permutations of the word rnopo. These words are obtained by scrambling the letters in rnopo.