Yes/No/Don't know, for capturing a common answer set in questionnaires

@prefix fhir: <http://hl7.org/fhir/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

# - resource -------------------------------------------------------------------

[a fhir:ValueSet;
  fhir:nodeRole fhir:treeRoot;
  fhir:Resource.id [ fhir:value "yesnodontknow"]; # 
  fhir:DomainResource.text [
     fhir:Narrative.status [ fhir:value "generated" ];
     fhir:Narrative.div "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n      <p>This value set contains 3 concepts</p>\n      <table class=\"codes\">\n        <tr>\n          <td style=\"white-space:nowrap\">\n            <b>Code</b>\n          </td>\n          <td>\n            <b>System</b>\n          </td>\n          <td>\n            <b>Display</b>\n          </td>\n          <td>\n            <b>Definition</b>\n          </td>\n        </tr>\n        <tr>\n          <td style=\"white-space:nowrap\">\n            <a name=\"http---terminology.hl7.org-CodeSystem-v2-0532-Y\"> </a>  \n            <a href=\"http://terminology.hl7.org/4.0.0/CodeSystem-v2-0532.html#v2-0532-Y\">Y</a>\n          </td>\n          <td>http://terminology.hl7.org/CodeSystem/v2-0532</td>\n          <td>Yes</td>\n          <td>\n            <div>\n              <p>Yes</p>\n\n            </div>\n          </td>\n        </tr>\n        <tr>\n          <td style=\"white-space:nowrap\">\n            <a name=\"http---terminology.hl7.org-CodeSystem-v2-0532-N\"> </a>  \n            <a href=\"http://terminology.hl7.org/4.0.0/CodeSystem-v2-0532.html#v2-0532-N\">N</a>\n          </td>\n          <td>http://terminology.hl7.org/CodeSystem/v2-0532</td>\n          <td>No</td>\n          <td>\n            <div>\n              <p>No</p>\n\n            </div>\n          </td>\n        </tr>\n        <tr>\n          <td style=\"white-space:nowrap\">\n            <a name=\"http---terminology.hl7.org-CodeSystem-data-absent-reason-asked-unknown\"> </a>  \n            <a href=\"http://terminology.hl7.org/4.0.0/CodeSystem-data-absent-reason.html#data-absent-reason-asked-unknown\">asked-unknown</a>\n          </td>\n          <td>http://terminology.hl7.org/CodeSystem/data-absent-reason</td>\n          <td>Don't know</td>\n          <td>\n            <div>\n              <p>The source was asked but does not know the value.</p>\n\n            </div>\n          </td>\n        </tr>\n      </table>\n    </div>"
  ]; # 
  fhir:ValueSet.url [ fhir:value "http://hl7.org/fhir/ValueSet/yesnodontknow"]; # 
  fhir:ValueSet.identifier [
     fhir:index 0;
     fhir:Identifier.system [ fhir:value "urn:ietf:rfc:3986" ];
     fhir:Identifier.value [ fhir:value "urn:oid:2.16.840.1.113883.4.642.3.3149" ]
  ]; # 
  fhir:ValueSet.version [ fhir:value "5.0.0-snapshot3"]; # 
  fhir:ValueSet.name [ fhir:value "YesNoDontKnow"]; # 
  fhir:ValueSet.title [ fhir:value "Yes/No/Don't Know"]; # 
  fhir:ValueSet.status [ fhir:value "draft"]; # 
  fhir:ValueSet.experimental [ fhir:value "true"^^xsd:boolean]; # 
  fhir:ValueSet.description [ fhir:value "For Capturing simple yes-no-don't know answers"]; # 
  fhir:ValueSet.compose [
     fhir:ValueSet.compose.include [
       fhir:index 0;
       fhir:ValueSet.compose.include.valueSet [
         fhir:value "http://terminology.hl7.org/ValueSet/v2-0136";
         fhir:index 0;
         fhir:link <http://terminology.hl7.org/ValueSet/v2-0136>
       ]
     ], [
       fhir:index 1;
       fhir:ValueSet.compose.include.system [ fhir:value "http://terminology.hl7.org/CodeSystem/data-absent-reason" ];
       fhir:ValueSet.compose.include.concept [
         fhir:index 0;
         fhir:ValueSet.compose.include.concept.code [ fhir:value "asked-unknown" ];
         fhir:ValueSet.compose.include.concept.display [ fhir:value "Don't know" ]
       ]
     ]
  ]; # 
  fhir:ValueSet.expansion [
     fhir:ValueSet.expansion.identifier [ fhir:value "urn:uuid:bf99fe50-2c2b-41ad-bd63-bee6919810b4" ];
     fhir:ValueSet.expansion.timestamp [ fhir:value "2015-07-14T10:00:00Z"^^xsd:dateTime ];
     fhir:ValueSet.expansion.contains [
       fhir:index 0;
       fhir:ValueSet.expansion.contains.system [ fhir:value "http://terminology.hl7.org/CodeSystem/v2-0532" ];
       fhir:ValueSet.expansion.contains.code [ fhir:value "Y" ];
       fhir:ValueSet.expansion.contains.display [ fhir:value "Yes" ]
     ], [
       fhir:index 1;
       fhir:ValueSet.expansion.contains.system [ fhir:value "http://terminology.hl7.org/CodeSystem/v2-0532" ];
       fhir:ValueSet.expansion.contains.code [ fhir:value "N" ];
       fhir:ValueSet.expansion.contains.display [ fhir:value "No" ]
     ], [
       fhir:index 2;
       fhir:ValueSet.expansion.contains.system [ fhir:value "http://terminology.hl7.org/CodeSystem/data-absent-reason" ];
       fhir:ValueSet.expansion.contains.code [ fhir:value "asked-unknown" ];
       fhir:ValueSet.expansion.contains.display [ fhir:value "Don't know" ]
     ]
  ]] . # 

# - ontology header ------------------------------------------------------------

[a owl:Ontology;
  owl:imports fhir:fhir.ttl] .

# -------------------------------------------------------------------------------------