namespace gco = "http://www.isotc211.org/2005/gco"
namespace gmd = "http://www.isotc211.org/2005/gmd"
namespace xlink = "http://www.w3.org/1999/xlink"
namespace xsi = "http://www.w3.org/2001/XMLSchema-instance"

start =
  element gmd:MD_Metadata {
    attribute xsi:schemaLocation { "http://www.isotc211.org/2005/gmd http://www.ngdc.noaa.gov/metadata/published/xsd/schema/gmd/gmd.xsd http://www.isotc211.org/2005/gmx http://www.ngdc.noaa.gov/metadata/published/xsd/schema/gmx/gmx.xsd" },
    element gmd:contact {
      attribute gco:nilReason { xsd:NCName "template" }
    },
    element gmd:dateStamp {
      element gco:DateTime { xsd:dateTime "2011-03-15T17:56:00" }
    },
    element gmd:identificationInfo {
      element gmd:MD_DataIdentification {
        element gmd:citation {
          attribute gco:nilReason { xsd:NCName "template" }
        },
        element gmd:abstract {
          attribute gco:nilReason { xsd:NCName "template" }
        },
        element gmd:descriptiveKeywords {
          element gmd:MD_Keywords {
            attribute id { xsd:NCName { pattern = "(WMOCD|WMOMV|GCMD)-FM\d\d" } },
            element gmd:keyword { CharacterString }+,
            element gmd:type {
              element gmd:MD_KeywordTypeCode {
                attribute codeList { xsd:anyURI "http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" },
                attribute codeListValue { xsd:NCName "theme" },
                xsd:NCName "theme"
              }
            },
            element gmd:thesaurusName {
              attribute xlink:actuate { xsd:NCName "onRequest" },
              attribute xlink:href { xsd:anyURI { pattern =
	      "../thesauri.xml#(WMOCodelist|WMONo182|GCMD)" } },
              attribute xlink:show { xsd:NCName "embed" },
              attribute xlink:title { xsd:token { pattern = 
	      "(WMO_CodeList dictionary|Modified WMO No\. 182, International Meteorological Vocabulary|Global Change Master Directory \(GCMD\) Scientific Keywords, Version 6.0.0.0.0)" } }
            }
          }
        }+,
        element gmd:language {
          attribute gco:nilReason { xsd:NCName "template" }
        }
      }
    },
    element gmd:metadataConstraints {
      element gmd:MD_Constraints {
        element gmd:useLimitation { CharacterString }
      }
    }
  }
CharacterString = element gco:CharacterString { text }