As used in this Article unless the context otherwise requires "property of a local public entity" and "public property" mean real or personal property owned or leased by a local public entity, but do not include easements, encroachments and other property that are located on its property but that it does not own, possess or lease.

(from Ch. 85, par. 3-101)

(Source: Laws 1965, p. 2983.)