A boy jumps on the beach.
A boy collapses on top of the sand castle he just built.
Jumping doesn't mean the boy has to collapses onto anything.
We have no idea if he collapses on the sand castle he just built. We have no idea if he fell at all, he could have jumped on anything or just up and down. We have no idea there is a sand castle around at all, there are a number of things on the beach.
You can not infer there is a sand castle.