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