Scene: 42899736 (source dataset: arkitscene_valid)
Grounding level: part_level — Function or Appearance
Referring expression: Select the part of the bed covered by the black sheet.
Ground-truth 3D box: width 0.81 m, length 1.53 m, height 0.59 m; center (-0.5199999999999998, 0.699999999999998, 0.5899999999999999); rotation angle 4