Scene: scene0696_00 (source dataset: scannet)
Grounding level: object_level — Dimensionality
Referring expression: What object, when laid flat on the ground, has a length of 2.1 meters?
Ground-truth 3D box: width 2.09 m, length 0.48 m, height 0.98 m; center (-0.84, 1.23, 0.43); rotation angle 0