Eliminate nesting by creating new objects from json

I have a standard nested json file which looks like the below: They are multi level nested and I have to eliminate all the nesting by creating new objects.

Nested json file.

{
"persons": [{
    "id": "f4d322fa8f552",
    "address": {
        "building": "710",
        "coord": "[123, 465]",
        "street": "Avenue Road",
        "zipcode": "12345"
    },
    "cuisine": "Chinese",
    "grades": [{
        "date": "2013-03-03T00:00:00.000Z",
        "grade": "B",
        "score": {
          "x": 3,
          "y": 2
        }
    }, {
        "date": "2012-11-23T00:00:00.000Z",
        "grade": "C",
        "score": {
          "x": 1,
          "y": 22
        }
    }],
    "name": "Shash"
}]
}

The new objects that needs to be created

persons 
[
{
"id": "f4d322fa8f552",
"cuisine": "Chinese",
"name": "Shash"
}
]

persons_address
[
{
"id": "f4d322fa8f552",
"building": "710",
"coord": "[123, 465]",
"street": "Avenue Road",
"zipcode": "12345"
}
]

persons_grade
[
{
"id": "f4d322fa8f552",
"__index": "0",
"date": "2013-03-03T00:00:00.000Z",
"grade": "B"
},
{
"id": "f4d322fa8f552",
"__index": "1",
"date": "2012-11-23T00:00:00.000Z",
"grade": "C"
},
]

persons_grade_score
[
{

"id": "f4d322fa8f552",
"__index": "0",
"x": "3",
"y": "2"

},
{

"id": "f4d322fa8f552",
"__index": "1",
"x": "1",
"y": "22"

},
]

My approach : I used a normalise function to make all the lists into dicts. Added another function which can add id to all the nested dicts.

Now I am not able to traverse each level and create new objects. Is there any way to get to this.

The whole idea after new objects are created we can load it into a database.

from Eliminate nesting by creating new objects from json