Please identify all the named entities mentioned in the input sentence provided below. Use only the categories: PER - person, ORG - organization, and LOC - location.
Remember, nationalities are neither locations nor organizations, and organizations can represent other groups of people.
Pay attention to the provided example. You should only output the results in JSON format, following a similar structure to the example result provided.

Example sentence and results:

Where in the world is Iguazu?

"Results": [
    {
        "TypeName": "LOC",
        "Text": "Iguazu",
        "Start": 22,
        "End": 28
    }
]

Considering the input sentence below, what is the output result?

As I have told RNR, I think we should advise Duke in writing that its IP is not in conformity with the contract, sinceit is in the alternative, and that our IP is hence the only one that will be before the arbitrators (since Duke clearly can not change it's ineffective IP at this stage, having already seen ours).


"Results": [
    {
        "TypeName": "ORG",
        "Text": "Duke",
        "Start": 45,
        "End": 49
    },
    {
        "TypeName": "ORG",
        "Text": "Duke",
        "Start": 45,
        "End": 49
    }
]