Search parameter for a reference example (id = "example-reference")

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

<SearchParameter xmlns="http://hl7.org/fhir">
  <id value="example-reference"/> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir"/> 
  </extension> 
  <url value="http://hl7.org/fhir/SearchParameter/example-reference"/> 
  <name value="ExampleSearchParameter"/> 
  <title value="Example Search Parameter"/> 
  <status value="draft"/> 
  <experimental value="true"/> 
  <date value="2013-10-23"/> 
  <publisher value="HL7 International / FHIR Infrastructure"/> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://www.hl7.org/Special/committees/fiwg"/> 
    </telecom> 
  </contact> 
  <description value="Search by condition subject"/> 
  <purpose value="Need to search Condition by subject"/> 
  <code value="subject"/> 
  <base value="Condition"/> 
  <type value="reference"/> 
  <expression value="Condition.subject"/> 
  <processingMode value="normal"/> 
  <target value="Organization"/> 
  <modifier value="missing"/> 
  <chain value="name"/> 
  <chain value="identifier"/> 
</SearchParameter>