Step 1
Objects: Four motorbikes (Motorbike1, Motorbike2, Motorbike3, Motorbike4), Street

Step 2
General Objects: Motorbike1, Motorbike2, Motorbike3, Motorbike4, Street
Text in the Image: N/A
Objects that specifically refer to the Proper Noun of the Real World: N/A

Step 3
triplets: [Motorbike1, General Objects, is parked on, Street, General Objects]
[Motorbike2, General Objects, is parked on, Street, General Objects]
[Motorbike3, General Objects, is parked on, Street, General Objects]
[Motorbike4, General Objects, is parked on, Street, General Objects]

Step 4
(1) Node with max degree: Street.
(2) Location of Street: [Spanning the entire lower part of the canvas].
(3) Location of Motorbike1, Motorbike2, Motorbike3, Motorbike4: 
Motorbike1: [Lower left of the canvas];
Motorbike2: [Lower center-left of the canvas];
Motorbike3: [Lower center-right of the canvas];
Motorbike4: [Lower right of the canvas].

Step 5
Bounding Boxes of the Objects:
Motorbike1, General Objects: [0.100, 0.550, 0.300, 0.850]
Motorbike2, General Objects: [0.325, 0.550, 0.525, 0.850]
Motorbike3, General Objects: [0.550, 0.550, 0.750, 0.850]
Motorbike4, General Objects: [0.775, 0.550, 0.975, 0.850]
Street, General Objects: [0.000, 0.500, 1.000, 1.000]

Step 6
{
  "Motorbike1": {"phrase": "Motorbike1", "coordinates": [0.100, 0.550, 0.300, 0.850]},
  "Motorbike2": {"phrase": "Motorbike2", "coordinates": [0.325, 0.550, 0.525, 0.850]},
  "Motorbike3": {"phrase": "Motorbike3", "coordinates": [0.550, 0.550, 0.750, 0.850]},
  "Motorbike4": {"phrase": "Motorbike4", "coordinates": [0.775, 0.550, 0.975, 0.850]},
  "Street": {"phrase": "Street", "coordinates": [0.000, 0.500, 1.000, 1.000]}
}