<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://example.org/fhir/StructureDefinition/PlanetAddress" />
  <name value="PlanetAddress" />
  <status value="draft" />
  <fhirVersion value="4.0.0" />
  <kind value="complex-type" />
  <abstract value="false" />
  <type value="Address" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Address" />
  <derivation value="constraint" />
  <differential>
    <element id="Address.extension">
      <path value="Address.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Address.extension:PlanetExtension">
      <path value="Address.extension" />
      <sliceName value="PlanetExtension" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://fhir.ufp/StructureDefinition/planet-ufp" />
      </type>
    </element>
    <element id="Address.line">
      <path value="Address.line" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Address.city">
      <path value="Address.city" />
      <min value="1" />
    </element>
  </differential>
</StructureDefinition>