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": ""}
1968-04-21 p    BRASSICAC EAE [ae!    S.N.        Q Sec 32, Chesaning Twp  CARDAMINE )   Saginaw WI %3    ( Theoore J. Crovello   kZ]Xy conc4@tena>ta    OmjVr Michigan  1462664 pxIg    X1 -84.115  
{"catalogNumber": "1462664", "order": "", "family": "Brassicaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Cardamine", "subgenus": "", "specificEpithet": "concatenata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Theodore J. Crovello", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "1968-04-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Saginaw", "municipality": "", "locality": "Sec 32, Chesaning Twp", "decimalLatitude": "", "decimalLongitude": "-84.115", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}