Q: "A man in a white hat is playing a red and white electric guitar while sitting at a synthesizer with multiple keyboards supported by white PVC pipes, with a blue railing in the background." Does this mean that "A man is playing the guitar."?
A: yes

Q: "Two men who look college age, one wearing red and the other wearing white are playing ultimate frisbee together with the white shirted man trying to block the red shirted man from passing." Does this mean that "Two friends are angrily discussing an issue"?
A: no

Q: "A band of men playing instruments." Does this mean that "The group of men is eating dinner."?
A: no

Q: "A young man with darker skin and a shaved head is sitting down smoking a cigarette." Does this mean that "The man is smoking."?
A:
yes