Final answer:
The church's ownership rights to the parcel of land constitute a fee simple defeasible estate, which means the land is granted with conditions or limitations.
Step-by-step explanation:
The church's ownership rights to the parcel of land constitute a fee simple defeasible estate. A fee simple defeasible estate is a type of ownership where the land is granted with conditions or limitations. In this case, the land is granted to the church as long as it is used for religious purposes. If the land is used for any other purpose, ownership could be terminated or transferred to another party.