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": ""}
     %iR9 -91.207378  m J Jackson CYPERACEAE Qx4    35.868027 ?   ^cZ? 1993-05-29      :3 1390093    ? NITED STATES    HTb  TRS: T12N R3W SC 21 SW4  <   568 ARKANSAS f0      aY W carex WAHLENB.  &d  
{"catalogNumber": "1390093", "order": "", "family": "Cyperaceae", "scientificName": "", "scientificNameAuthorship": "Wahlenb.", "genus": "Carex", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "5568", "verbatimEventDate": "1993-05-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "Jackson", "municipality": "", "locality": "", "decimalLatitude": "35.868027", "decimalLongitude": "-91.207378", "verbatimCoordinates": "TRS: T12N R3W sec 21 SW4", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}