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": ""}
  Warren H. Wagner, Jr.  2   c8M4s 2 9clones, different than 8540b.    41.90138 `8^    1958-07-19 I_          Fr populus grandidentata   0  GRANIDENTATA   LC!D 85405a     3 United States WOODS. WITH P. TREMULOIDES AND HYBRID.     
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Populus grandidentata", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "grandidentata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Warren H. Wagner, Jr.", "recordNumber": "8540a", "verbatimEventDate": "1958-07-19", "habitat": "Woods. With P. tremuloides and hybrid.", "occurrenceRemarks": "2 clones, different than 8540b.", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "41.90138", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}