Step 1
Objects: Office Desk, Monitor(1), Monitor(2), Monitor(3), Monitor(4)

Step 2
General Objects: Office Desk, Monitor(1), Monitor(2), Monitor(3), Monitor(4)
Text in the Image: N/A
Objects that specifically refer to the Proper Noun of the Real World: N/A

Step 3
triplets: [Office Desk, General Objects, supports, Monitor(1), General Objects]
[Office Desk, General Objects, supports, Monitor(2), General Objects]
[Office Desk, General Objects, supports, Monitor(3), General Objects]
[Office Desk, General Objects, supports, Monitor(4), General Objects]

Step 4
(1) Node with max degree: Office Desk.
(2) Location of Office Desk: [Spanning the lower center of the canvas].
(3) Location of Monitor(1), Monitor(2), Monitor(3), Monitor(4): 
Monitor(1): [Left side of the Office Desk];
Monitor(2): [Left center of the Office Desk];
Monitor(3): [Right center of the Office Desk];
Monitor(4): [Right side of the Office Desk].

Step 5
Bounding Boxes of the Objects:
Office Desk, General Objects: [0.050, 0.650, 0.950, 0.950] - The desk occupies the lower part of the canvas.
Monitor(1), General Objects: [0.100, 0.500, 0.300, 0.640] - Located on the left side of the desk.
Monitor(2), General Objects: [0.325, 0.500, 0.525, 0.640] - Located on the left center of the desk.
Monitor(3), General Objects: [0.550, 0.500, 0.750, 0.640] - Located on the right center of the desk.
Monitor(4), General Objects: [0.775, 0.500, 0.975, 0.640] - Located on the right side of the desk.

Step 6
{
  "Office Desk": {"phrase": "Office Desk", "coordinates": [0.050, 0.650, 0.950, 0.950]},
  "Monitor1": {"phrase": "Monitor", "coordinates": [0.100, 0.500, 0.300, 0.640]},
  "Monitor2": {"phrase": "Monitor", "coordinates": [0.325, 0.500, 0.525, 0.640]},
  "Monitor3": {"phrase": "Monitor", "coordinates": [0.550, 0.500, 0.750, 0.640]},
  "Monitor4": {"phrase": "Monitor", "coordinates": [0.775, 0.500, 0.975, 0.640]}
}