IfcRelSpaceBoundary_1038071IfcRelSpaceBoundary_1038333IfcRelSpaceBoundary_1040550IfcRelSpaceBoundary_1040578IfcRelSpaceBoundary_1041812IfcRelSpaceBoundary_1041957IfcRelSpaceBoundary_1042228IfcRelSpaceBoundary_1044582IfcRelSpaceBoundary_1044610IfcRelSpaceBoundary_1045318IfcRelSpaceBoundary_1047631IfcRelSpaceBoundary_1048367