IfcRelSpaceBoundary_1071440IfcRelSpaceBoundary_1071471IfcRelSpaceBoundary_1071499IfcRelSpaceBoundary_1071527IfcRelSpaceBoundary_1071555IfcRelSpaceBoundary_1071585IfcRelSpaceBoundary_1071613IfcRelSpaceBoundary_1071641IfcRelSpaceBoundary_1071669IfcRelSpaceBoundary_1071697IfcRelSpaceBoundary_1071733IfcRelSpaceBoundary_1072795IfcRelSpaceBoundary_1072823