Step 1
Objects: Red Apple, Black Plate

Step 2
General Objects: Red Apple, Black Plate
Text in the Image: N/A
Objects that specifically refer to the Proper Noun of the Real World: N/A

Step 3
triplets: [Red Apple, General Objects, is on top of, Black Plate, General Objects]

Step 4
(1) Node with max degree: Black Plate. 
(2) Location of Black Plate: [Center of the canvas].
(3) Location of Red Apple: [Center of the canvas, specifically on top of the Black Plate].

Step 5
Bounding Boxes of the Objects:
Black Plate, General Objects: [0.300, 0.400, 0.700, 0.600] - Centered in the image.
Red Apple, General Objects: [0.450, 0.300, 0.550, 0.400] - Positioned directly above the center of the plate.

Step 6
{"Black Plate": {"phrase": "Black Plate","coordinates": [0.300, 0.400, 0.700, 0.600]},
 "Red Apple": {"phrase": "Red Apple","coordinates": [0.450, 0.300, 0.550, 0.400]}}