Here is a text with multiple JSON objects including duplicates.

```json
{
  "id": 1,
  "name": "First Object",
  "tags": ["one", "first", "primary"]
}
```

Text between code blocks.

```
{
  "id": 2,
  "name": "Second Object",
  "tags": ["two", "second"]
}
```

Another identical object to the first one:

```json
{
  "id": 1,
  "name": "First Object",
  "tags": ["one", "first", "primary"]
}
```

Different order of keys but same data (should be detected as duplicate):

```json
{
  "tags": ["one", "first", "primary"],
  "name": "First Object",
  "id": 1
}
```

Unique object with nested structure:

```json
{
  "id": 3,
  "name": "Third Object",
  "metadata": {
    "created": "2023-01-01",
    "version": 1.0
  },
  "active": true
}
``` 