Q: "A man looking at a picture in his camera." Does this mean that "The man is looking at his digital camera."?
A: it is not possible to tell

Q: "A green motorcycle is being ridden on a wet racetrack." Does this mean that "Someone is riding a green motorcycle."?
A: yes

Q: "A girl is performing a skateboarding maneuver." Does this mean that "A girl is skateboarding."?
A: yes

Q: "Outdoor market selling flowers and plants." Does this mean that "The market sells drugs."?
A:
no