Q: "Students are inside of a lecture hall." Does this mean that "Students are listening to a professor give a lecture."?
A: it is not possible to tell

Q: "A young man working on a artistic painting." Does this mean that "The young man is mowing the lawn"?
A: no

Q: "A woman sits on the edge of a sidewalk with a garbage bin beside her" Does this mean that "The woman is homeless"?
A: it is not possible to tell

Q: "Shoppers are browsing in a produce market." Does this mean that "People are examining meats."?
A:
no