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?

Looking out of the window, Decoud was met by a darkness so impenetrable that he could see neither the mountains nor the town, nor yet the buildings near the harbour; and there was not a sound, as if the tremendous obscurity of the Placid Gulf, spreading from the waters over the land, had made it dumb as well as blind. . . .


"Results": [
    {
        "TypeName": "PER",
        "Text": "Decoud",
        "Start": 27,
        "End": 33
    },
    {
        "TypeName": "LOC",
        "Text": "Placid Gulf",
        "Start": 231,
        "End": 242
    }
]