Query: What is my history of tobacco smoking?, FHIR Resource: {'resourceType': 'Observation', 'status': 'final', 'category': [{'coding': [{'system': 'http://terminology.hl7.org/CodeSystem/observation-category', 'code': 'vital-signs', 'display': 'Vital signs'}]}], 'code': {'coding': [{'system': 'http://loinc.org', 'code': '72514-3', 'display': 'Pain severity - 0-10 verbal numeric rating [Score] - Reported'}], 'text': 'Pain severity - 0-10 verbal numeric rating [Score] - Reported'}, 'subject': {'reference': 'urn:uuid:c43f2f49-ca86-ead4-1dc9-1c35fe10937d'}, 'effectiveDateTime': '2021-07-24T17:23:25+05:30', 'valueQuantity': {'value': 3, 'unit': '{score}', 'system': 'http://unitsofmeasure.org', 'code': '{score}'}, 'interpretation': None}