"Stop" and "Continue" are most useful when we need to write rules that will have to stop the action some of the time but at other times let it pass; so for instance:
The Assembly Room is a room. "On most days, this room is used for elementary school assemblies; at the moment, it serves as a voting place." The ballot is on the desk. The desk is in the Assembly Room.
The machine is a container in the Assembly Room. "On the ballot machine is a sign which reads 'PUT BALLOTS IN ME :)'." Understand "ballot machine" as the machine.