Create Record in perl using OSLC CM API

<rdf:RDF xmlns:cq="http://www.ibm.com/xmlns/prod/rational/clearquest/1.0/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:oslc="http://open-services.net/ns/core#" xmlns:oslc_cm="http://open-services.net/ns/cm#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<oslc_cm:ChangeRequest rdf:about="https://xxx/cqweb/oslc/repo/xxx/db/xxx/record/16778926-33554436">
<dcterms:title>Creation of Record using OSLC thru perl</dcterms:title>
<cq:CustomerCategory rdf:resource="https://xxx/cqweb/oslc/repo/xxx/db/xxx/record/16792718-33555136"
</cq:CustomerCategory>
</oslc_cm:ChangeRequest>
</rdf:RDF>

Above is my Request.

My question is i want to create Defect record where i have customer category which is another Record.
So i am trying in the above...But seems to be NO LUCK :(
Can somebody help me out for the above case with example.