Q: "A man in a white cap and shirt plays the violin with other street performers." Does this mean that "A street performer plays a flute."?
A: it is not possible to tell

Q: "A group of people riding a roller coaster upside down." Does this mean that "People are riding on a roller coaster."?
A: yes

Q: "A man in a red shirt is taking a nap on one of the motorcycles near him." Does this mean that "A woman is riding a motorcycle."?
A: no

Q: "Men riding bicycles race on a curvy bike trail." Does this mean that "Men enjoying the outdoors."?
A:
yes