ActorDefinition that contains a series of nested ratings to document the risk of bias assessment of an Evidence resource

{
  "resourceType" : "ActorDefinition",
  "id" : "client",
  "text" : {
    "status" : "extensions",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: ActorDefinition</b><a name=\"client\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource ActorDefinition &quot;client&quot; </p></div><p><b>StructureDefinition Work Group</b>: fhir</p><p><b>url</b>: <code>http://hl7.org/fhir/ActorDefinition/client</code></p><p><b>identifier</b>: id:\u00a0<a href=\"http://terminology.hl7.org/5.4.0/NamingSystem-uri.html\">#</a>urn:oid:2.16.840.1.113883.4.642.27.2</p><p><b>name</b>: ClientActor</p><p><b>title</b>: Client Actor</p><p><b>status</b>: active</p><p><b>date</b>: 2021-11-02T14:31:30.239Z</p><p><b>publisher</b>: HL7 International / FHIR Infrastructure</p><p><b>contact</b>: <a href=\"http://www.hl7.org/Special/committees/fiwg\">http://www.hl7.org/Special/committees/fiwg</a>, <a href=\"http://www.hl7.org/Special/committees/fiwg/index.cfm\">http://www.hl7.org/Special/committees/fiwg/index.cfm</a></p><p><b>description</b>: Client Actor</p><p><b>type</b>: system</p></div>"
  },
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "fhir"
  }],
  "url" : "http://hl7.org/fhir/ActorDefinition/client",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.27.2"
  }],
  "name" : "ClientActor",
  "title" : "Client Actor",
  "status" : "active",
  "date" : "2021-11-02T14:31:30.239Z",
  "publisher" : "HL7 International / FHIR Infrastructure",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg/index.cfm"
    }]
  }],
  "description" : "Client Actor",
  "type" : "system"
}