Q: "A child in a green shirt rides a bicycle." Does this mean that "The child is wearing a red shirt."?
A: no

Q: "An Asian man standing on some sand appears to be ready to serve a volleyball." Does this mean that "A man is playing volleyball with a baseball."?
A: no

Q: "Two teenagers sit on a dock and check their cellphones." Does this mean that "Two teenagers sit on a dock and check their phones."?
A: yes

Q: "A young boy plays in the water fountain." Does this mean that "A child plays in a fountain."?
A:
yes