: It identifies a single, unified object that does not break apart or change its structural integrity throughout the video.
: In reasoning tasks like those found in VBVR-Wan2 , labeling something as a "solid piece" helps the model predict collision outcomes, spatial configurations, and structural complexity. g_206.mp4
In the context of this dataset, a "" generally refers to an object's physical property within a simulation or reasoning task. Specifically: : It identifies a single, unified object that