Step 1
Objects: Green Tractors, Red Tractor, Number 700

Step 2
General Objects: Green Tractors, Red Tractor
Text in the Image: Number 700
Objects that specifically refer to the Proper Noun of the Real World: N/A

Step 3
triplets: [Green Tractors, General Objects, are next to, Red Tractor, General Objects]
[Red Tractor, General Objects, has, Number 700, Text in the Image]
[Number 700, Text in the Image, is on, Red Tractor, General Objects]

Step 4
(1) Node with max degree: Red Tractor.
(2) Location of Red Tractor: [Center of the canvas].
(3) Location of Green Tractors, Number 700: 
Green Tractors: [To the left and right of the Red Tractor, evenly spaced].
Number 700: [On the side of the Red Tractor, towards the upper part].

Step 5
Bounding Boxes of the Objects:
Red Tractor, General Objects: [0.400, 0.300, 0.600, 0.700] - Centrally located in the canvas.
Green Tractors, General Objects: [0.200, 0.300, 0.350, 0.700], [0.650, 0.300, 0.800, 0.700] - Positioned to the left and right of the Red Tractor.
Number 700, Text in the Image: [0.510, 0.310, 0.590, 0.390] - Positioned on the side of the Red Tractor, towards the upper part.

Step 6
{
  "Red Tractor": {"phrase": "Red Tractor", "coordinates": [0.400, 0.300, 0.600, 0.700]},
  "Green Tractor1": {"phrase": "Green Tractor", "coordinates": [0.200, 0.300, 0.350, 0.700]},
  "Green Tractor2": {"phrase": "Green Tractor", "coordinates": [0.650, 0.300, 0.800, 0.700]},
  "Number 700": {"phrase": "Number 700", "coordinates": [0.510, 0.310, 0.590, 0.390]}
}