Step 1
Objects: Red Tomato, Green Cutting Board

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

Step 3
triplets: [Red Tomato, General Objects, is on top of, Green Cutting Board, General Objects]

Step 4
(1) Node with max degree: Green Cutting Board.
(2) Location of Green Cutting Board: [Center of the canvas].
(3) Location of Red Tomato: [Center of the Green Cutting Board, slightly towards the upper center of the canvas].

Step 5
Bounding Boxes of the Objects:
Green Cutting Board, General Objects: [0.200, 0.400, 0.800, 0.600] - Positioned centrally in the canvas.
Red Tomato, General Objects: [0.450, 0.450, 0.550, 0.550] - Positioned on top of the cutting board, centered but slightly towards the upper part.

Step 6
{"Green Cutting Board": {"phrase": "Green Cutting Board", "coordinates": [0.200, 0.400, 0.800, 0.600]},
 "Red Tomato": {"phrase": "Red Tomato", "coordinates": [0.450, 0.450, 0.550, 0.550]}}