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": ""}
  vk9  NIGRA  fkw peter w. friTtsch     "FLOWERS YELLOW, 1.0-1.2 CM IN DIAMETER LOCAL."   ZX 1985-07-28      BRASSICACEAE It      J[* hillsdale  ~g? brassica nigra ROADSIDE NEXT TO A BEAN FIELD^ IN DRY SOIL. ?X       6| 1462144  michigan Ez kk   v UNITED STATES 
{"catalogNumber": "1462144", "order": "", "family": "Brassicaceae", "scientificName": "Brassica nigra", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "nigra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Peter W. Fritsch", "recordNumber": "", "verbatimEventDate": "1985-07-28", "habitat": "Roadside next to a bean field in dry soil.", "occurrenceRemarks": "\"Flowers yellow, 1.0-1.2 cm in diameter. Local.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Hillsdale", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}