Q: "Little boy rides around playground on a motorized bike." Does this mean that "Boy rides around the playground on a scooter."?
A: it is not possible to tell

Q: "People are setting up chairs on a beach." Does this mean that "People are sitting in the sand."?
A: no

Q: "A woman reaches into a box of candy while a man stands nearby." Does this mean that "The woman wants a piece of candy."?
A: yes

Q: "A young girl in martial arts class kicks a bag." Does this mean that "A young girl kicking a soccer ball."?
A:
no