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": ""}
  s.n.  D   united states l[ h    = lewis foote  nigrum _ +6-    1491580 Wfl    f.W michx. 8t pM   1862-05-02 y   (% sapindaceae  9l3  Acer    a Specimen in Lewis F0ote herbarium, p.9 ANN ARBOR 7_9    no%2] WASHTENAW    B4 42.2814
{"catalogNumber": "1491580", "order": "", "family": "Sapindaceae", "scientificName": "", "scientificNameAuthorship": "F. Michx.", "genus": "Acer", "subgenus": "", "specificEpithet": "nigrum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Lewis Foote", "recordNumber": "s.n.", "verbatimEventDate": "1862-05-02", "habitat": "", "occurrenceRemarks": "Specimen in Lewis Foote herbarium, p.9", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "Ann Arbor", "decimalLatitude": "42.2814", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}