Q: "An old woman celebrating her 90th birthday." Does this mean that "A young girl is celebrating her birthday."?
A: no

Q: "A young boy jumping barefoot on a trampoline in his grassy backyard." Does this mean that "A boy jumps on his brand new trampoline outside in the backyard"?
A: it is not possible to tell

Q: "A group of children are sitting on a wall." Does this mean that "There are children outdoors."?
A: yes

Q: "Three dogs look as a human holds a pink ball on the beach." Does this mean that "three dogs are in the snow"?
A:
no