2.2.1.1 guid

A globally unique identifier (GUID) of an object or entity within the protocol. The GUIDString element is defined by the following XML.

 <s:simpleType name="guid">
   <s:restriction base="s:string">
     <s:pattern value="[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-
     [0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}" />
   </s:restriction>
   </s:simpleType>