Scene: 41069046 (source dataset: arkitscene_valid)
Grounding level: space_level — Size Understanding
Referring expression: Lay two rectangular mats on the floor beneath the wall mounted TV monitor, each measuring 70cm x 120cm. Ensure the short edges of the two mats connect, with the new mat located directly 0.5 meters in front of the bed's foot.
Ground-truth 3D box: width 0.7 m, length 2.4 m, height 0.06 m; center (0.345352167243423, -0.72324416694798, 0.357522499255745); rotation angle 3