Query: What was the severity of the pain I reported on June 19, 2017?, FHIR Resource: {'resourceType': 'Observation', 'status': 'final', 'category': [{'coding': [{'system': 'http://terminology.hl7.org/CodeSystem/observation-category', 'code': 'laboratory', 'display': 'Laboratory'}]}], 'code': {'coding': [{'system': 'http://loinc.org', 'code': '718-7', 'display': 'Hemoglobin [Mass/volume] in Blood'}], 'text': 'Hemoglobin [Mass/volume] in Blood'}, 'subject': {'reference': 'urn:uuid:c4c341f4-7f3a-287e-c087-0dd130ecc2c1'}, 'effectiveDateTime': '2021-07-10T20:51:01+05:30', 'valueQuantity': {'value': 13.209, 'unit': 'g/dL', 'system': 'http://unitsofmeasure.org', 'code': 'g/dL'}, 'interpretation': None}