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			Top of the CONA Hierarchy
			.... Built Works (CONA facet)
			........ <B> (8)

			............ Built Works by class: recreational and entertainment structures
			................ Panama Pacific International Exposition, San Francisco
			.................... Arch of the Rising Sun
			.................... Boiler House
			.................... Court of Abundance
			.................... Court of the Universe
			.................... Festival Hall
			.................... Fountain of Energy
			.................... Horticulture Hall
			.................... Ohio Building
			.................... Oregon Building
			.................... Palace of Fine Arts
			.................... Palace of Machinery
			.................... Tower of Education
			.................... Tower of Jewels

........ <U> (1)