The main() function would look like this:

```python
def main():
  """
  The main function.
  """

  # Define the points.
  points = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]

  # Check if any four of the points lie on the same plane.
  if are_four_points_coplanar(points):
    print("The points lie on the same plane.")
  else:
    print("The points do not lie on the same plane.")


if __name__ == "__main__":
  main()
```

This function first defines the points as a list of lists. Then, it calls the are_four_points_coplanar() function to check if any four of the points lie on the same plane. If they do, the function prints a message; otherwise, it prints a different message.

To run the function, you can save it as a Python file and then run it in a Python interpreter. For example, if you save the function as `coplanar_points.py`, you can run it as follows:

```
python coplanar_points.py
```

I hope this helps! Let me know if you have any other questions.
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