Q: "A woman walking down a suburban street." Does this mean that "A woman is walking."?
A: yes

Q: "a cyclist is performing a jumping stunt in front of a city skyline." Does this mean that "The cyclist is jumping on a tightrope."?
A: it is not possible to tell

Q: "Someone holding a piece of, what looks like clear plastic, down on a hard surface while they drill a hole through it." Does this mean that "Someone is working with tools."?
A: yes

Q: "A woman crosscountry skiing, with a brown dog." Does this mean that "THE grass was green"?
A:
it is not possible to tell