Scene: scene0356_00 (source dataset: scannet)
Grounding level: part_level — Function or Appearance
Referring expression: Find out the mattress in the room.
Ground-truth 3D box: width 0.96 m, length 2.04 m, height 0.15 m; center (1.21, 0.94, 0.7200000000000002); rotation angle 0