Step 1
Objects: Red Book, Yellow Bookshelf

Step 2
General Objects: Red Book, Yellow Bookshelf
Text in the Image: N/A
Objects that specifically refer to the Proper Noun of the Real World: N/A

Step 3
triplets: [Red Book, General Objects, is on top of, Yellow Bookshelf, General Objects]

Step 4
(1) Node with max degree: Yellow Bookshelf.
(2) Location of Yellow Bookshelf: [Center of the canvas].
(3) Location of Red Book: [Center-top of the Yellow Bookshelf].

Step 5
Bounding Boxes of the Objects:
Yellow Bookshelf, General Objects: [0.100, 0.300, 0.900, 0.900] - The bookshelf occupies a central position in the image, spanning vertically.
Red Book, General Objects: [0.400, 0.200, 0.600, 0.300] - The red book is placed on top of the yellow bookshelf, centrally aligned.

Step 6
{
  "Yellow Bookshelf": {"phrase": "Yellow Bookshelf", "coordinates": [0.100, 0.300, 0.900, 0.900]},
  "Red Book": {"phrase": "Red Book", "coordinates": [0.400, 0.200, 0.600, 0.300]}
}