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": ""}
   O+%B -83.82587    _w 1941-07-17      >?_KrHYDROCHARITACEAE   b Genesee or Livingston   8oF flexilis  U 308     najas flexilis  o     UNITED STATES t 1wv   
{"catalogNumber": "", "order": "", "family": "Hydrocharitaceae", "scientificName": "Najas flexilis", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "flexilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "308", "verbatimEventDate": "1941-07-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Genesee or Livingston", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.82587", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}