Q: "A man in a flag had one finger up while walking past the camera." Does this mean that "The man was giving someone the finger."?
A: it is not possible to tell

Q: "A girl is painting a building on a piece of canvas." Does this mean that "There's a canvas being painted on."?
A: yes

Q: "Man in white polo t-shirt with glasses plays a red guitar." Does this mean that "Man playing claranet."?
A: no

Q: "Four adults and one child visit on a backyard patio." Does this mean that "people are sitting and talking on their vacation"?
A:
it is not possible to tell