Q: "A woman sitting on a grassy hill hitting a tennis ball with a racket." Does this mean that "A woman is hitting a tennis ball while sitting because she is bored."?
A: it is not possible to tell

Q: "A woman smiles and laughs as she appears interested in her conversation." Does this mean that "A woman is having a conversation."?
A: yes

Q: "The clean up crew is cleaning up the stairwell in order to make sure customer's are safe while using the stairwell." Does this mean that "The people are inside"?
A: no

Q: "A woman in green is picking out candy." Does this mean that "A woman in green is picking out all the chocolate candy."?
A:
it is not possible to tell