Scene: 10b17942-3938-2467-8933-5d40ada6d445 (source dataset: 3RScan)
Grounding level: space_level — Situation Understanding
Referring expression: When ascending the spiral stair, you might consider adding a small round carpet on the floor closely beneath the lowest step, with a diameter of approximately 1.0 meters and a height of 0.02 meters.
Ground-truth 3D box: width 1 m, length 1 m, height 0.02 m; center (-0.06, -0.4, 0.1200000000000001); rotation angle 0