Scene: scene0689_00 (source dataset: scannet)
Grounding level: space_level — Size Understanding
Referring expression: Facing the whiteboard, add a book rack to the right side of the whiteboard, right next to the corner of the wall on the right side of the whiteboard. The length of the book rack is exactly one-third of the length of the whiteboard, with a width of 0.2 meters and a height of 1.3 meters.
Ground-truth 3D box: width 0.2 m, length 1.03 m, height 1.3 m; center (-2.02, 1.54, 0.77); rotation angle 0