"lowercase",
            "bulgarian_stop",
            "bulgarian_keywords",
            "bulgarian_override",
            "bulgarian_stemmer"
          ]
        },
        "catalan_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "filter": [
            "truncate20_filter",
            "catalan_elision",
            "lowercase",
            "catalan_stop",