Q: "The little girl is riding in a brown horse." Does this mean that "A child with a horse."?
A: yes

Q: "A large crowd of people walking." Does this mean that "A large crowd of people are moving"?
A: yes

Q: "A mustached man wearing a dark gray shirt plays an accordion." Does this mean that "A street performer is playing for an audience."?
A: it is not possible to tell

Q: "Two performers striking a pose." Does this mean that "Two people swimming in a lake"?
A:
no