Scene: scene0655_00 (source dataset: scannet)
Grounding level: space_level — Distance Understanding
Referring expression: Install a ceiling speaker that measures 0.3 meters in length, 0.3 meters in width, and 0.1 meters in height, centrally 1.3 meters above the conference table surface to enhance audio during meetings.
Ground-truth 3D box: width 0.3 m, length 0.3 m, height 0.1 m; center (-0.4, -0.78, 2.08); rotation angle 0