Property means the real estate upon which a project is or will be located, including equipment, machinery, and other similar items necessary or convenient for the operation of the project in the manner for which its use is intended, but not including such items as fuel, supplies, or other items that are customarily deemed to result in a current operation charge. Property does not include any property used or to be used primarily for sectarian instruction or study or as a place for devotional activities or religious worship nor any property which is used or to be used primarily in connection with any part of the program of a school or department of divinity for any religious denomination or the training of ministers, priests, rabbis, or other professional persons in the field of religion.