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": ""}
   s.n. x    Poales a   r UNITED STATES  K pauciflora    HARRISON   WMH Scleria 1898-05-14 h4     n Samuel M. Tracy    xw MISSISSIPPI  !4  VAR.  pauciflora Z   Cyperaceae % -  scleria pauciflora var. pauciflobra  sEN    1402657 i wi    l- biloxi
{"catalogNumber": "1402657", "order": "Poales", "family": "Cyperaceae", "scientificName": "Scleria pauciflora var. pauciflora", "scientificNameAuthorship": "", "genus": "Scleria", "subgenus": "", "specificEpithet": "pauciflora", "verbatimTaxonRank": "var.", "infraspecificEpithet": "pauciflora", "identifiedBy": "", "recordedBy": "Samuel M. Tracy", "recordNumber": "s.n.", "verbatimEventDate": "1898-05-14", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Mississippi", "county": "Harrison", "municipality": "", "locality": "Biloxi", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}