Step 1
Objects: Red Pencil, Green Notebook

Step 2
General Objects: Red Pencil, Green Notebook
Text in the Image: N/A
Objects that specifically refer to the Proper Noun of the Real World: N/A

Step 3
triplets: [Red Pencil, General Objects, is on top of, Green Notebook, General Objects]

Step 4
(1) Node with max degree: Green Notebook.
(2) Location of Green Notebook: [Center of the canvas].
(3) Location of Red Pencil: [On top of the Green Notebook, slightly offset towards the center].

Step 5
Bounding Boxes of the Objects:
Green Notebook, General Objects: [0.200, 0.400, 0.800, 0.600] - Positioned centrally in the image.
Red Pencil, General Objects: [0.450, 0.350, 0.550, 0.450] - Positioned on top of the Green Notebook, aligned centrally but slightly towards the upper part.

Step 6
{
  "Green Notebook": {
    "phrase": "Green Notebook",
    "coordinates": [0.200, 0.400, 0.800, 0.600]
  },
  "Red Pencil": {
    "phrase": "Red Pencil",
    "coordinates": [0.450, 0.350, 0.550, 0.450]
  }
}