Q: "Group of girls in red school uniforms walking on a busy sidewalk." Does this mean that "There is a group of girls."?
A: yes

Q: "A toddler boy rides the playground horse." Does this mean that "A toddler is swimming at the beach."?
A: no

Q: "Three people dressed in red, green, and black view a cliff that overlooks a body of water." Does this mean that "The three friends build a fort in the livingroom."?
A: no

Q: "A man is sitting down on the edge of the sidewalk, dressed in an odd green suit, while people carry about their business behind him." Does this mean that "Everybody is standing inside the bus."?
A:
no