code: protected boolean isSubsetContainedIn(Set<String> selectedListItems, Set<String> distinctFacetValues) {
          boolean isPresent = false;
          for (String selectedListItem : selectedListItems) {
              isPresent = distinctFacetValues.contains(selectedListItem);
          }
          return isPresent;
      }
docs: check if *any* of items in selectedListItems is present in distinctFacetValues
  @param selectedListItems
  @param distinctFacetValues
  @return