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": ""}
CAMPANULASTRUM r   ~A  asterales    k campanulastrum americanum  FREQUENT IN WOODED RIVER-BOTTOM ,`     -86.273621 7R       xE6 MICHIGAN     EL americanum    | united states  42.402916 RvvR<    C1b<E 1910-07-18  yE+|1 l.h. pen3nington  .Ne CAMPANULACEAE  qj>Q Van Buren
{"catalogNumber": "", "order": "Asterales", "family": "Campanulaceae", "scientificName": "Campanulastrum americanum", "scientificNameAuthorship": "", "genus": "Campanulastrum", "subgenus": "", "specificEpithet": "americanum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L.H. Pennington", "recordNumber": "", "verbatimEventDate": "1910-07-18", "habitat": "Frequent in wooded river-bottom", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Van Buren", "municipality": "", "locality": "", "decimalLatitude": "42.402916", "decimalLongitude": "-86.273621", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}