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": ""}
          n ] -83.6687 CAMPANULASTRUM AMERICANUM $zF    -b americanum  Washtenaw d  MICHIGAN a   [Approx coordinates are for the W end of the north swamp in Horner Woods]  5u  S.N. 447         5 1970-07-15   
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Campanulastrum americanum", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "americanum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "1970-07-15", "habitat": "", "occurrenceRemarks": "[Approx. coordinates are for the W end of the north swamp in Horner Woods]", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.6687", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}