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": ""}
  n0 ROBERT F.C. NA CZI  M Ca 9 mi N of Fredericksburg, along E side of rd 965 at bridge over Metzler Creek.   P  POALES   t 1400786   8t Rhynchospora nivea      @4vb 1555   Vqy Rhynchospora    , United States       nivea wX%   1987-05-09 ^ 
{"catalogNumber": "1400786", "order": "Poales", "family": "", "scientificName": "Rhynchospora nivea", "scientificNameAuthorship": "", "genus": "Rhynchospora", "subgenus": "", "specificEpithet": "nivea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert F.C. Naczi", "recordNumber": "1555", "verbatimEventDate": "1987-05-09", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "Ca 9 mi N of Fredericksburg, along E side of rd 965 at bridge over Metzler Creek.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}