Q: "A girl is doing a trick on her trampoline." Does this mean that "A girl is having fun."?
A: it is not possible to tell

Q: "A couple holds hands while walking by buildings." Does this mean that "A couple holds hands while on a walk together."?
A: it is not possible to tell

Q: "A woman rides a bike behind a safety barrier to a busy street." Does this mean that "woman rides bike"?
A: yes

Q: "A child gets dental care from a dentist as the another health professional holds his hand." Does this mean that "The child is getting brain surgery."?
A:
no