Item query variation for sitemap retrieval

Itemquery.gql

query(
  $itemId: String = "908351357A914446A08D17436464FFAF"
  $language: String = "en"
) {
  item(path: $itemId, language: $language) {
    ... on _SitemapXmlData {
      fields {
        name
        id
        value
      }
    }
  }
}