Permutations For NIPON

Here are all the permutations for the letters NIPON.

nipo niop npio npoi noip nopi inpo inop ipno ipno ionp ionp inpo inop pnio pnoi pino pino poni poni pnio pnoi onip onpi oinp oinp opni opni onip onpi nipo niop npio npoi noip nopi