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": ""}
 1929-09-11 U:5  symphyotrichum YhF     SYMPHYOTRICHUM FIRMUM %JL6t    Q)O MICHIGAN  ,o]s John H. Ehlers UNITED STATES b5rk     Dune region !  ASTERACE4E ):+  Asterales $&,D  (NEES) G. L. NESOM  -+-    Anton A. Reznicek Cp|      < FIRMUM 1251756  yFQ   BETWEEN BREVORT LAKE AD LAKE MICHIGAN bR_B  
{"catalogNumber": "1251756", "order": "Asterales", "family": "Asteraceae", "scientificName": "Symphyotrichum firmum", "scientificNameAuthorship": "(Nees) G. L. Nesom", "genus": "Symphyotrichum", "subgenus": "", "specificEpithet": "firmum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "John H. Ehlers", "recordNumber": "", "verbatimEventDate": "1929-09-11", "habitat": "Dune region", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "between Brevort Lake and Lake Michigan", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}