"filter": [
            "truncate20_filter",
            "lowercase",
            "thai_stop",
            "thai_keywords"
          ]
        },
        "traditional_chinese_analyzer": {
          "char_filter": [ "traditional_chinese_convert" ],
          "tokenizer":  "simplified_chinese_tokenizer",
          "filter": [
            "truncate10_filter",
            "lowercase",

          }
        }
      },
      {
        "lang_zh-tw": {
          "match": "*_zh-tw",
          "mapping": {
            "type": "text",
            "analyzer": "traditional_chinese_analyzer"
          }
        }
      }
    ],
    "properties": {
      "anchor": {
        "type": "keyword"
      },
      "boost": {
        "type": "float"
      },