Q: "A man riding a cart pulled by a donkey." Does this mean that "A donkey is pulling a cart."?
A: yes

Q: "boy in class looking bored thrown on his desk." Does this mean that "A teacher looks at a troublemaker"?
A: it is not possible to tell

Q: "A shirtless man standing on the edge of a stream." Does this mean that "A man sits in the snow."?
A: no

Q: "Three people waiting at a bus stop." Does this mean that "Three people are waiting for the bus."?
A:
yes