docs: def process(self, candidates):
          """
          :arg list candidates: list of Candidate instances
          """
          for c in candidates[:]:
              if c.locator not in self.good_locators:
                  # TODO: search string, i.e. find "EU_Street_Name" in "EU_Street_Name.GBR_StreetName"
                  candidates.remove(c)
  
          return candidates