Q: "A woman with a large purse is walking by a gate." Does this mean that "A woman approaches someone's house."?
A: it is not possible to tell

Q: "a young boy rides a purple bike." Does this mean that "The boy is riding his sister's purple bike."?
A: it is not possible to tell

Q: "Construction equipment and workers in a non-US city" Does this mean that "Construction workers in a foreign city."?
A: yes

Q: "A man on a motorbike is leading the horse with another man on its back." Does this mean that "The horse has a saddle."?
A:
it is not possible to tell