Q: "A man helps a young girl balance on a bicycle that is too big for her." Does this mean that "Man helps a young girl balance on her bike."?
A: yes

Q: "A bald man in a black jacket and black pants holding a microphone singing with a man in a black shirt and jeans playing an electric guitar on stage." Does this mean that "A man sings into a microphone."?
A: yes

Q: "A girl with a red bike riding during the day." Does this mean that "A girl rides her bike through the park on her way to school."?
A: it is not possible to tell

Q: "A man walking on a dirt road." Does this mean that "The man is walking by his house."?
A:
it is not possible to tell