The answer is "He is motivated to achieve a goal."
Explained is the action verb.
The activity director is completing the action of explaining the context rules.
Odysseus, the hero from Homer’s epic poem The Odyssey, does not kill the brutish cyclops, Polyphemus, because Odysseus and his men would be trapped in the cave.
“Then he rolled a huge stone to the mouth of the cave—so huge that two and twenty strong four-wheeled wagons would not be enough to draw it from its place against the doorway.”
<em>-ur local skatergirl, Rin:)</em>
Wouldn't it be simple sentences
