IfcRelSpaceBoundary_1051140IfcRelSpaceBoundary_1051169IfcRelSpaceBoundary_1051197IfcRelSpaceBoundary_1051225IfcRelSpaceBoundary_1051253IfcRelSpaceBoundary_1051281IfcRelSpaceBoundary_1051309IfcRelSpaceBoundary_1051337IfcRelSpaceBoundary_1051365IfcRelSpaceBoundary_1051401IfcRelSpaceBoundary_1051717IfcRelSpaceBoundary_1051745IfcRelSpaceBoundary_1051773IfcRelSpaceBoundary_1051801IfcRelSpaceBoundary_1051831IfcRelSpaceBoundary_1051859IfcRelSpaceBoundary_1051887IfcRelSpaceBoundary_1051915IfcRelSpaceBoundary_1051951