Q: "Two men paint a park bench." Does this mean that "Two men painting grafatti on a park bench."?
A: it is not possible to tell

Q: "A boy jumping a rail on his skateboard." Does this mean that "A boy doing tricks on his skateboard."?
A: it is not possible to tell

Q: "A small boy is playing with rocks" Does this mean that "a boy is playing with stones"?
A: yes

Q: "A group of people looks up at a TV screen showing a football game, while two women stand beneath the screen talking." Does this mean that "People watching football."?
A:
yes