How to create Requisitions using TEE API?

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I've been beating my head against a proverbial wall trying to create requisitions via the Bulk API. I've tried to follow the directions in the Bulk API Reference Guide, and I've come up with the attached XML. This presents me with the response:

500: Internal Server Error

<?xml version="1.0" encoding="UTF-8"?>

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

     <soapenv:Body>

          <soapenv:Fault>

               <faultcode>soapenv:Server.userException</faultcode>

               <faultstring>javax.xml.soap.SOAPException: org.xml.sax.SAXException: Legacy integration documents support an optional IntegrationInformation element and a single generic content element.</faultstring>

               <detail/>

          </soapenv:Fault>

     </soapenv:Body>

</soapenv:Envelope>

I don't know what I'm doing wrong here. Should I not be using the Bulk API to do Requisition imports at all?