editorial revisions, annotations, elaborations, or other modifications
      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

      "Contribution" shall mean any work of authorship, including

            "italian_stemmer"
          ]
        },
        "japanese_analyzer": {
          "type": "custom",
          "char_filter": [
            "mapping_ja_filter",
            "fess_japanese_iteration_mark"
          ],
          "tokenizer": "japanese_tokenizer",
          "filter": [
            "truncate10_filter",
            "fess_japanese_baseform",
            "fess_japanese_stemmer",