I tried to calculate the IRR on the port Aransas and Roma post offices.

"Results": [
    {
        "TypeName": "PER",
        "Text": "Aransas",
        "Start": 41,
        "End": 48
    },
    {
        "TypeName": "PER",
        "Text": "Roma",
        "Start": 53,
        "End": 57
    }
]