Q: "Competitors getting ready to compete in a grand opening event hosted by the chief executive" Does this mean that "Nobody is getting ready"?
A: no

Q: "A group of children playing on the street, some on bicycles, and one on a scooter, and one in a blue shirt walking." Does this mean that "The children are all related."?
A: it is not possible to tell

Q: "A lady in a sexy red dress walks in front of a crowd of men." Does this mean that "A man in blue walks past a crowd of women."?
A: no

Q: "Three soccer players, the one in blue and red possess the ball and the one on white is trying to steal it away." Does this mean that "Two people are keeping a soccer ball away from a third."?
A:
it is not possible to tell