Q: "A brown-haired young girl in a stroller rubs her eyes." Does this mean that "A toddler stretches her arms."?
A: yes

Q: "A group of people dressed in costumes singing." Does this mean that "A caroling group playing during Christmas."?
A: it is not possible to tell

Q: "A man is standing on a ladder painting bricks" Does this mean that "An old lady is standing on a ladder"?
A: no

Q: "A person rides a white and green sail board across the water." Does this mean that "The person is playing on the water"?
A:
yes