Rabbi Yosi vs. the Rabbis - on a field that was fertilized by the manure of idolatry, or the like, and how that field can be planted, and what terms are required for that to happen. Plus, the potential ramifications of their same logic on leavened dough. When the problematic item that is prohibited from benefit, can it be redeemed for money, and then destroy those coins in the Dead Sea? The rabbis say that there's no financial redemption for idolatry. Also, several new mishnayot: One who takes wood from an asherah tree cannot get benefit from that wood, so what happens if that wood were used to heat a new oven? Or an old oven? Or bread? Or a garment that was woven with idolatrous items? What about revoking the idolatrous status? As long as thee non-Jew is clear that he's not treating the tree as an object of worship, then he is not. Plus, the Roman god of Mercury and the stone-throwing idolatrous worship thereof.