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": ""}
1910-07-18 6        e SOUTH HAVEN,   ,yK AN B1UREN  Campanulaceae ,      O%Prg -86.273621 42.402916 bz(     5c% (l.) smalLl       americanum b    Dv asterales  02 Campanulastrum  WD uniteMd stat3s
{"catalogNumber": "", "order": "Asterales", "family": "Campanulaceae", "scientificName": "", "scientificNameAuthorship": "(L.) Small", "genus": "Campanulastrum", "subgenus": "", "specificEpithet": "americanum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1910-07-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Van Buren", "municipality": "", "locality": "South Haven,", "decimalLatitude": "42.402916", "decimalLongitude": "-86.273621", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}