<xs:attribute name="space">
    <xs:annotation>
        <xs:documentation>
            <div>
                <h3>space (as an attribute name)</h3>
                <p>
       denotes an attribute whose
       value is a keyword indicating what whitespace processing
       discipline is intended for the content of the element; its
       value is inherited.  This name is reserved by virtue of its
       definition in the XML specification.</p>
            </div>
        </xs:documentation>
    </xs:annotation>
    <xs:simpleType>
        <xs:restriction base="xs:NCName">
            <xs:enumeration value="default" />
            <xs:enumeration value="preserve" />
        </xs:restriction>
    </xs:simpleType>
</xs:attribute>