Q: "A horse is jumping two rails with a rider wearing a green jacket." Does this mean that "An animal jumping."?
A: yes

Q: "Musicians are on stage with their instruments as a row of people stand around in front of them." Does this mean that "Gallagher has really stepped up his stage performances"?
A: no

Q: "A man walks on the sidewalk by a sign." Does this mean that "A woman breaks down a sign."?
A: no

Q: "The woman is skating in the park." Does this mean that "A woman is ice skating in the winter."?
A:
it is not possible to tell