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": ""}
 1837-06-16 U   Rosaceae %fY   B 1470618 MICHIGAN  `   Rubus  -   RD 42.0951 4-83.1879 S:i    aram sager VGqY  occidentalis s-j8L   S& S.N.    RUBUS OCCIDENTALIS an   %[M~ Mark P. Widrle;chner  p<[[5 Rosales     L. h  
{"catalogNumber": "1470618", "order": "Rosales", "family": "Rosaceae", "scientificName": "Rubus occidentalis", "scientificNameAuthorship": "L.", "genus": "Rubus", "subgenus": "", "specificEpithet": "occidentalis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Mark P. Widrlechner", "recordedBy": "Abram Sager", "recordNumber": "s.n.", "verbatimEventDate": "1837-06-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "42.0951", "decimalLongitude": "-83.1879", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}