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": ""}
     Poaceae    R^f FLORIDA   United States j7^Rz  1931-06-16 2<F   m`I  leersia    Leersia hexandra  l=     CONTACT UM HERBARIUM  Y@t:     HEXANDRA oXshz      7 james b. mcfarlin  7 polk
{"catalogNumber": "", "order": "", "family": "Poaceae", "scientificName": "Leersia hexandra", "scientificNameAuthorship": "", "genus": "Leersia", "subgenus": "", "specificEpithet": "hexandra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "James B. McFarlin", "recordNumber": "", "verbatimEventDate": "1931-06-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Florida", "county": "Polk", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}