Q: "men are on a soccer field playing." Does this mean that "A group of swimmers test the water before the race."?
A: no

Q: "Basketball players warming up on the court in a nearly empty arena." Does this mean that "People playing basketball in an arena."?
A: yes

Q: "A slightly overweight woman in a short skirt and top stands on the sidewalk in front of a wall with several old posters and a barred window." Does this mean that "A chubby woman is on the sidewalk ."?
A: yes

Q: "A man riding the water on a single board, holding on to a support with one hand." Does this mean that "A man is trying to get better at balancing"?
A:
it is not possible to tell