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": ""}
  CLETHRA Elty   sX+ Michx.  clet*hra acuminata tTI&Ix  UNITED STATES := V?   1509072 V =9%  s.n. ua ?    /O Biltmore clethraceae LKjoS  GRPM 44255 V,    e1qZ 1897-07-20    Moist woods c)w    :  BUNCOMBE  ~5 ^ NOT EVIDENT Ericales XS;    north carolina +     
{"catalogNumber": "1509072", "order": "Ericales", "family": "Clethraceae", "scientificName": "Clethra acuminata", "scientificNameAuthorship": "Michx.", "genus": "Clethra", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Not evident", "recordNumber": "s.n.", "verbatimEventDate": "1897-07-20", "habitat": "Moist woods", "occurrenceRemarks": "GRPM 44255", "associatedTaxa": "", "country": "United States", "stateProvince": "North Carolina", "county": "Buncombe", "municipality": "", "locality": "Biltmore", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}