Q: "A woman examines a specimen using a microscope." Does this mean that "A man is dissecting frogs"?
A: no

Q: "A group of people string a large canvas from a structure." Does this mean that "The people are sitting on folding chairs are waiting for a show to start."?
A: no

Q: "A man in a red jacket is sitting on a bench whilst cooking a meal." Does this mean that "A man is working at a restaurant."?
A: it is not possible to tell

Q: "A lady wearing a green sweatshirt and jeans sits on the ground and hits a tennis ball with a tennis racket." Does this mean that "A lady is seated on the ground hitting a tennis ball with a racket."?
A:
yes