Q: "Two guys are on skateboards in the woods." Does this mean that "Two men engaged in a skateboard race."?
A: it is not possible to tell

Q: "Cheerleaders, building a pyramid, pose in front of a crowd." Does this mean that "The cheerleaders are performing at a football game."?
A: it is not possible to tell

Q: "Man sitting on a cart that is being pulled by a large white ox." Does this mean that "The man is sitting on the cart"?
A: yes

Q: "A boy wearing a red jacket sits on his dad's shoulders while his father who is wearing a gray long-sleeved shirt and white shorts holds onto a large black dog by its leash." Does this mean that "A boy is tired from walking so he is sitting on his dad's shoulders."?
A:
it is not possible to tell