Step 1
Objects: Black Lamp, White Nightstand

Step 2
General Objects: Black Lamp, White Nightstand
Text in the Image: N/A
Objects that specifically refer to the Proper Noun of the Real World: N/A

Step 3
triplets: [Black Lamp, General Objects, is on top of, White Nightstand, General Objects]

Step 4
(1) Node with max degree: White Nightstand. 
(2) Location of White Nightstand: [Center of the canvas].
(3) Location of Black Lamp: [Directly above the White Nightstand, indicating it is on top of it].

Step 5
Bounding Boxes of the Objects:
White Nightstand, General Objects: [0.300, 0.500, 0.700, 0.900] - The nightstand is centrally located in the image.
Black Lamp, General Objects: [0.400, 0.300, 0.600, 0.500] - The lamp is positioned directly above the nightstand.

Step 6
{"Nightstand": {"phrase": "White Nightstand","coordinates": [0.300, 0.500, 0.700, 0.900]},
 "Lamp": {"phrase": "Black Lamp","coordinates": [0.400, 0.300, 0.600, 0.500]}}