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			Top of the CONA Hierarchy
			.... Conceptual Works (CONA facet)
			........ <C> (4)

			............ Conceptual Works by class: for movable works
			................ Carceri d'Invenzione
			.................... Round Tower (multiples)
			........................ Round tower [N]
			........................ The Round Tower, from 'Carceri d'invenzione' (Imaginary Prisons) [N]