Q: "A female solder posing in her uniform." Does this mean that "A female soldier wears her combat uniform."?
A: it is not possible to tell

Q: "A boy in a blue hat and a yellow backpack is carrying a box while walking down the street." Does this mean that "A boy with a backpack walks down a street"?
A: yes

Q: "A little boy with blond-hair, who wears blue clothing and black boots, walks down a slightly rocky dirt path." Does this mean that "a boy is chasing someone down"?
A: it is not possible to tell

Q: "The dogs are running in the snow." Does this mean that "The dogs are chasing each other."?
A:
it is not possible to tell