Q: "A boy leaps off his skateboard over some steps near a house." Does this mean that "The child pratices his moves before heading to the park."?
A: it is not possible to tell

Q: "A dog jumps over a hurdle in the grass." Does this mean that "A dog is sleeping in the sand."?
A: no

Q: "A group of people play on bamboo rafts in a waterfall fed pool surrounded by a lush forest." Does this mean that "The bamboo raft is sinking with everyone on it."?
A: no

Q: "A man gives the peace sign while barbecuing chicken outdoors." Does this mean that "The man is making food."?
A:
yes