<xsd:element name="urlset">
    <xsd:annotation>
        <xsd:documentation>

      Container for a set of up to 50,000 document elements.

      This is the root element of the XML file.

    </xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
        <xsd:sequence>
            <xsd:element maxOccurs="unbounded" ref="url" />
        </xsd:sequence>
    </xsd:complexType>
</xsd:element>