Q: "a man is driving a red ATV up a rugged hill." Does this mean that "A man is driving a fourwheeler."?
A: yes

Q: "A man wearing a white shirt and jeans is walking by looking at a large advertisement poster." Does this mean that "A poster catches the attention of a man walking by."?
A: yes

Q: "A person walks up a white sandy hill against the blue sky." Does this mean that "Somebody is walking outside."?
A: yes

Q: "A dog is walking near a body of water." Does this mean that "dog walking with his master at the lake"?
A:
it is not possible to tell