English: “Wood on the fire” — this teaches that it is a mitzvah to place fire before the wood (wood upon the fire, and not fire upon the wood).
In the Yerushalmi: Word order is instructional. “Wood on the fire” means fire is already present; wood is arranged upon it. The reverse sequence is not the mitzvah form of this phrase.
Type of Learning
Diyuk from the order “wood on the fire” — fire first, then wood.
What Is Learned
Fire is set first; the wood is arranged upon the already-present fire, not the reverse. “Wood on the fire” is a sequence rule, not only a location rule.