Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
  x NORTH CAROLINA  kN Ce HEUCHERA AMERICANA  )r french broad river, near biltmore S.N. ||`5D   C# grpm 40369   sx p 1897-06-10  *z<B BUNCOMBE 1501593 2OE       TM4 NOT EVIDENT  americana       L. J  saxifragaceae XXx     [|: saxifragales  `!- united states heuchera 1O&   Rocky bluffs of river ~wi5 
{"catalogNumber": "1501593", "order": "Saxifragales", "family": "Saxifragaceae", "scientificName": "Heuchera americana", "scientificNameAuthorship": "L.", "genus": "Heuchera", "subgenus": "", "specificEpithet": "americana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Not evident", "recordNumber": "s.n.", "verbatimEventDate": "1897-06-10", "habitat": "Rocky bluffs of river", "occurrenceRemarks": "GRPM 40369", "associatedTaxa": "", "country": "United States", "stateProvince": "North Carolina", "county": "Buncombe", "municipality": "", "locality": "French Broad River, near Biltmore", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}