{
  "version": {
    "_number": "$Revision$"
  },
  "keyword": {
    "u": {
      "em": {
        "_description": "Emoji presentation style request",
        "_since": "29",
        "default": {
          "_description": "use the default presentation as specified in UTR #51",
          "_since": "29"
        },
        "emoji": {
          "_description": "use an emoji presentation for emoji characters if possible",
          "_since": "29"
        },
        "text": {
          "_description": "use a text presentation for emoji characters if possible",
          "_since": "29"
        }
      },
      "rg": {
        "_description": "Alternate region for determining certain data values (e.g. default currency and units) specified by rgScope",
        "_since": "29",
        "RG_KEY_VALUE": {
          "_description": "A region code from idValidity/id[type='region'][idStatus='regular'], suffixed with 'ZZZZ'",
          "_since": "29"
        }
      },
      "sd": {
        "_description": "Region subdivision",
        "_since": "28",
        "SUBDIVISION_CODE": {
          "_description": "Valid unicode_subdivision_subtag for the region subtag as specified in LDML, based on subdivisionContainment data in supplementalData, prefixed by the associated unicode_region_subtag",
          "_since": "28"
        }
      },
      "va": {
        "_description": "Common locale variant type key",
        "posix": {
          "_description": "POSIX style locale variant"
        }
      }
    }
  }
}