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": ""}
 fZS CHARLEVOIX E.W. ROELOFS +FAx     d 1304450 (WILLD.) ROSTK. & W. L. E. SCHMIDT ;W      Najas flexilis -   S8 1941-08-20     8^96  FLEXILIS  hydrocharitaceae mu   UNITED STATES y  506  4P     OY4~ MICHIGAN alismatalesB  4  NAJ45 Z%    cM Hoffman Lake
{"catalogNumber": "1304450", "order": "Alismatales", "family": "Hydrocharitaceae", "scientificName": "Najas flexilis", "scientificNameAuthorship": "(Willd.) Rostk. & W. L. E. Schmidt", "genus": "Najas", "subgenus": "", "specificEpithet": "flexilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "E.W. Roelofs", "recordNumber": "506", "verbatimEventDate": "1941-08-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Charlevoix", "municipality": "", "locality": "Hoffman Lake", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}