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": ""}
    PbC= Brassica nigra ANTON A. REZNICEK     |9 S. DEMING    field and woods KZi`   509 tnr  Jackson  a&(    -M5  1513342  5&5L BRASSICA       brassicales h>xq     />+ UNITED STATES (L.) W. D. J. KOCH )C  1978-10-03 TiD  
{"catalogNumber": "1513342", "order": "Brassicales", "family": "", "scientificName": "Brassica nigra", "scientificNameAuthorship": "(L.) W. D. J. Koch", "genus": "Brassica", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "S. Deming", "recordNumber": "509", "verbatimEventDate": "1978-10-03", "habitat": "field and woods", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Jackson", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}