Q: "Three people walk on grass adjacent to a river." Does this mean that "Some people are walking to a bridge to cross a river."?
A: it is not possible to tell

Q: "Two bald men in a bedroom with one man working on a desktop computer and the observing while seated on the bed next to him." Does this mean that "The men are doing inappropriate things."?
A: no

Q: "A man in bright white clothing and tattoos performs on a stage with a red background while holding a microphone in his left hand." Does this mean that "A man is performing for a crowd"?
A: yes

Q: "A man in a green hat and striped shirt walking." Does this mean that "The mans head is exposed"?
A:
no