Step 1
Objects: Gray Car, License Plate, Text 'JIBA'

Step 2
General Objects: Gray Car, License Plate
Text in the Image: Text 'JIBA'
Objects that specifically refer to the Proper Noun of the Real World: N/A

Step 3
triplets: [Gray Car, General Objects, has, License Plate, General Objects]
[License Plate, General Objects, has, Text 'JIBA', Text in the Image]
[Text 'JIBA', Text in the Image, is on, License Plate, General Objects]

Step 4
(1) Node with max degree: Gray Car.
(2) Location of Gray Car: [Center of the canvas].
(3) Location of License Plate, Text 'JIBA': License Plate: [Rear center of the Gray Car]; Text 'JIBA': [Center of the License Plate].

Step 5
Bounding Boxes of the Objects:
Gray Car, General Objects: [0.100, 0.200, 0.900, 0.800] - The car occupies a central position in the image.
License Plate, General Objects: [0.400, 0.700, 0.600, 0.750] - The license plate is at the rear center of the car.
Text 'JIBA', Text in the Image: [0.410, 0.710, 0.590, 0.740] - The text is centered on the license plate.

Step 6
{"Gray Car": {"phrase": "Gray Car","coordinates": [0.100, 0.200, 0.900, 0.800]},
 "License Plate": {"phrase": "License Plate","coordinates": [0.400, 0.700, 0.600, 0.750]},
 "JIBA": {"phrase": "Text 'JIBA'","coordinates": [0.410, 0.710, 0.590, 0.740]}}