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:

What is this Miramar?

"Results": [
    {
        "TypeName": "LOC",
        "Text": "Miramar",
        "Start": 13,
        "End": 20
    }
]

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

I 've got some friends at Duke and Dynegy from B-school, the Gianoucous (spelling??) brothers (John and Dimitri?from elementary school) started their own outfit a while back, and my old man is at Schlumberger and has good contacts in general (if you are n't married to a trading environment).


"Results": [
    {
        "TypeName": "ORG",
        "Text": "Duke",
        "Start": 26,
        "End": 30
    },
    {
        "TypeName": "ORG",
        "Text": "Dynegy",
        "Start": 35,
        "End": 41
    },
    {
        "TypeName": "PER",
        "Text": "Gianoucous",
        "Start": 61,
        "End": 71
    },
    {
        "TypeName": "PER",
        "Text": "John",
        "Start": 95,
        "End": 99
    },
    {
        "TypeName": "PER",
        "Text": "Dimitri",
        "Start": 104,
        "End": 111
    },
    {
        "TypeName": "ORG",
        "Text": "Schlumberger",
        "Start": 196,
        "End": 208
    }
]