Q: "An elderly man in a leather jacket with a scarf is holding up a sign." Does this mean that "An elderly man in a leather jacket with a scarf is holding up a union sign."?
A: it is not possible to tell

Q: "Several adults in red suits swimming with children in a pool." Does this mean that "A seal eats a rock."?
A: no

Q: "A group of people fixing their bikes in a wooded area, there is a man with a green shirt with navy shorts fixing one bike with the company of a young woman, and in the background there are more bikes being fixed." Does this mean that "The people are outside."?
A: yes

Q: "Two swimmers competing in swim competition." Does this mean that "Two swimmers are competing"?
A:
yes