Q: "A competitor does a pole vault." Does this mean that "An athlete competes in the pole vaulting event."?
A: yes

Q: "A man standing next to a women's restroom in an orange shirt." Does this mean that "There is a woman's restroom in this building."?
A: yes

Q: "A teenager plays her trumpet on the field at a game." Does this mean that "The girl performed for a crowd."?
A: it is not possible to tell

Q: "A guy on Rollerblades is grinding on a rail in a skate park." Does this mean that "The guy is doing tricks on his rollerblades."?
A:
it is not possible to tell