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": ""}
    2w UNITED STATES grayi xK!7!    ; polk   1400373 :>     : About 2 mi east of Lake Alfred, vicinity of Winter Haven.   >  1931-01-29   Rhynchospora grayi Q.]^b  4157 [ uo  > .0>Y  CVPERACEAE James [B. McFarlin -   Vzv  RHYNCHOSPORA    C. KUNTH  .F Florida Poales Oq~an 
{"catalogNumber": "1400373", "order": "Poales", "family": "Cyperaceae", "scientificName": "Rhynchospora grayi", "scientificNameAuthorship": "Kunth", "genus": "Rhynchospora", "subgenus": "", "specificEpithet": "grayi", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "James B. McFarlin", "recordNumber": "4157", "verbatimEventDate": "1931-01-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Florida", "county": "Polk", "municipality": "", "locality": "About 2 mi east of Lake Alfred, vicinity of Winter Haven.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}