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": ""}
1477561 +   gFv-o NAJAS FLEXILIS   V]N (Willd.) Rostk. & W. L. E . Schmidt   Xim hydrocharitaceae   UA   FLEXILIS   MICHIGAN ` @p    Alismatales sZm     407 K3r5[  NAJAS !0   CHARLEVOIX o%5&   -85.2584  ZA<  United States b  1892-09-07 bd   Charles F. Wheeler bt&    $_(*Q AXnton A. Renicek
{"catalogNumber": "1477561", "order": "Alismatales", "family": "Hydrocharitaceae", "scientificName": "Najas flexilis", "scientificNameAuthorship": "(Willd.) Rostk. & W. L. E. Schmidt", "genus": "Najas", "subgenus": "", "specificEpithet": "flexilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Charles F. Wheeler", "recordNumber": "407", "verbatimEventDate": "1892-09-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Charlevoix", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-85.2584", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}