"language":   "dutch"
      },
      "dutch_override": {
        "type":       "stemmer_override",
        "rules": [
          "fiets=>fiets",
          "bromfiets=>bromfiets",
          "ei=>eier",
          "kind=>kinder"
        ]
      },
      "english_keywords": {
        "type":       "keyword_marker",
        "keywords":   ["hello"]
      },
      "finnish_stop": {