Before the Andes were formed, the western margin of South America had already been the site of several orogenies.

"Results": [
    {
        "TypeName": "LOC",
        "Text": "the Andes",
        "Start": 7,
        "End": 16
    },
    {
        "TypeName": "LOC",
        "Text": "South America",
        "Start": 52,
        "End": 65
    }
]