Nothing. Their duty is to guard the tomb and there should be no reason at all to when they stop. When changing guards maybe but someone is still there watching.
An example of a graphic organizer is a chart
<span>c)t is possible that the piñata originated somewhere other than China.
The sentence says that many people believe it originated in China, but clearly it is not a known fact, where the pinata originated. This means that since there is doubt, the pinata might have originated somewhere other than China.</span>