Scene: scene0474_00 (source dataset: scannet)
Grounding level: space_level — Size Understanding
Referring expression: Design a new sectional sofa in the living room between the cart and the chair directly opposite it. The length of the new sofa is 40% of the original sofa's length, with a depth of 0.4 meters, and the height is the same as the original sofa. It is placed parallel to the original sofa.
Ground-truth 3D box: width 0.5 m, length 0.96 m, height 0.8 m; center (-0.28, 0.54, 0.41); rotation angle 90