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": ""}
 c 84964   Robert Kral zh52M   RHYNCHOSPORA GRACILENTA b      5w* /gracilenta      2c POALES       1400340  By Old US 90, between Fontainbleau and Gautier. Th4b     m>*X A. GRAY  K Mississippi      
{"catalogNumber": "1400340", "order": "Poales", "family": "", "scientificName": "Rhynchospora gracilenta", "scientificNameAuthorship": "A. Gray", "genus": "", "subgenus": "", "specificEpithet": "gracilenta", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert Kral", "recordNumber": "84964", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Mississippi", "county": "", "municipality": "", "locality": "By Old US 90, between Fontainbleau and Gautier.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}