Q: "Construction worker cutting concrete with a pro-saw." Does this mean that "A construction worker using a pro-saw."?
A: yes

Q: "People stand outside behind a railing." Does this mean that "A group of work mates hang out after work"?
A: it is not possible to tell

Q: "A crowd of people surrounding a float carrying men waving a gay pride flag." Does this mean that "The angry crowd surrounded the float."?
A: it is not possible to tell

Q: "A man wearing a jacket sitting and smoking a cigarette" Does this mean that "A man wearing a jacket sitting and smoking a cigarette outside a cafe."?
A:
it is not possible to tell