Q: "A little boy climbs on a stack of tractor tires at a playground." Does this mean that "A girl is swimming"?
A: no

Q: "a large brown dog trying to catch a small white puppy from behind" Does this mean that "A large animal is running with a small white animal."?
A: yes

Q: "A group of males playing basketball." Does this mean that "The girls play tennis"?
A: no

Q: "A pack of racing cyclists speed along a road in the countryside." Does this mean that "A bike race is occurring."?
A:
yes