The young boy can not be on the trampoline and watching his sister on the trampoline at the same time.


Context: "A young boy is at a fair using one of the installations that uses a trampoline and two elastic bands attached to the waist to enable the user to jump very high safely." Claim: "A boy watches his sister play on the trampoline at the fair."
Considering the context, is the claim true, false, or unknown?