Q: "A girl is sitting on someone's shoulders in front of a green wall." Does this mean that "The girl is running."?
A: no

Q: "An older man and woman exercise on treadmills." Does this mean that "Two older people are napping."?
A: no

Q: "Two men wearing swimming trunks jump in the air while on the beach." Does this mean that "Two girls are swimming in a pool"?
A: no

Q: "A girl in pink pant playing in the ground." Does this mean that "a girl plays in the ground while waiting for her friend"?
A:
it is not possible to tell