Q: "A singer sings into a microphone while other musicians play in the background." Does this mean that "The singer is a female."?
A: it is not possible to tell

Q: "A little girl with blond-hair is holding a big blue ball." Does this mean that "A big girl with blond-hair is holding a big blue ball."?
A: no

Q: "A woman is doing flips on a trampoline in front of a lake." Does this mean that "The woman bounces on the trampoline."?
A: yes

Q: "A woman with sunglasses is leaning against a brown building" Does this mean that "A woman with yellow sunglasses is leaning against a tall brown building and smoking a cigarette."?
A:
it is not possible to tell