<xsd:simpleType name="SAONtype">

<xsd:restriction base="xsd:string">

<xsd:minLength value="4"/>

<xsd:pattern value="[0-9 ]{4}[A-Z ]([0-9 ]{4}[A-Z ][a-zA-Z0-9:;<=>\?@%&'\(\)\*\+,\-\. ]{0,90})?"/>

</xsd:restriction>

</xsd:simpleType>