Scene: scene0030_00 (source dataset: scannet)
Grounding level: space_level — Size Understanding
Referring expression: Place a blanket with identical length and width, and a thickness of 0.02 meters, directly in front of the armchair, snug against the edge of the armchair and the legs of the table in front of the armchair.
Ground-truth 3D box: width 0.8 m, length 0.8 m, height 0.02 m; center (1.25, 2.43, 0); rotation angle 3