code: private static TechReportPlacement normalizePlacement(GraphContext graphContext, TechReportPlacement placement)
      {
          TagGraphService tagService = new TagGraphService(graphContext);
  
          final TechReportPlacement normalPlacement = new TechReportPlacement();
          normalPlacement.sector = getNonPlaceParent(tagService, placement.sector);
          normalPlacement.box = getNonPlaceParent(tagService, placement.box);
          normalPlacement.row = getNonPlaceParent(tagService, placement.row);
          return normalPlacement;
      }
docs: This relies on the tag structure in the XML when the place:* mapping tags have exactly one parent outside the place: group, which is the tag
  they are mapped to.