<xs:simpleType name="simpleDerivationSet">
    <xs:annotation>
        <xs:documentation>
#all or (possibly empty) subset of {restriction, union, list}
</xs:documentation>
        <xs:documentation>
A utility type, not for public use</xs:documentation>
    </xs:annotation>
    <xs:union>
        <xs:simpleType>
            <xs:restriction base="xs:token">
                <xs:enumeration value="#all" />
            </xs:restriction>
        </xs:simpleType>
        <xs:simpleType>
            <xs:restriction base="st:derivationControl">
                <xs:enumeration value="list" />
                <xs:enumeration value="union" />
                <xs:enumeration value="restriction" />
            </xs:restriction>
        </xs:simpleType>
    </xs:union>
</xs:simpleType>

• simpleDerivationSet
• st:final
• st:final