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": ""}
  1400939 ,7 Ju  RHYNCHOSPORA PUSILLA hP=OX   * 2 chapm. ex m.a. curtis  MISSISSIPPI `n1Yf   AtCW  pusilla  united states YvtF   Robert Kral o    I POALES   Stone 4rr>     s223 81392  7 mi e of wiggins. C#     VJj rbynch0spora  ku1 1992-08-12  CYBERACEAE Y 
{"catalogNumber": "1400939", "order": "Poales", "family": "Cyperaceae", "scientificName": "Rhynchospora pusilla", "scientificNameAuthorship": "Chapm. ex M.A. Curtis", "genus": "Rhynchospora", "subgenus": "", "specificEpithet": "pusilla", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert Kral", "recordNumber": "81392", "verbatimEventDate": "1992-08-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Mississippi", "county": "Stone", "municipality": "", "locality": "7 mi E of Wiggins.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}