Q: "A teenager has his leg in a brace." Does this mean that "There is a person with something on his leg."?
A: yes

Q: "People are gathered at an event in a sandy area." Does this mean that "People at an event outside."?
A: yes

Q: "A woman in a black shirt, jean shorts and white tennis shoes is bowling." Does this mean that "A man is skating."?
A: no

Q: "A man and a woman are standing in the middle of the highway looking at motorcycles on the road as traffic is passing." Does this mean that "The man and woman have legs."?
A:
yes