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": ""}
  [Y_ growing along road on summit of bluff.  Brassicales S    6 schrad.  FW 2444 brassicaceae W ?    ~ ! 1462981 LEPIDIUM DENSIFLORUM ,pe V   i3Qiy MICHIGAN  4 /Cu United States WEST BLUFF 7bgyE  LEPIDIUM  %E1  CHARLES D. RICHARDS j 4T   `Zz 1949-07-17    *J densiflorum   1h = -87.968753     W% BR 47.46428 
{"catalogNumber": "1462981", "order": "Brassicales", "family": "Brassicaceae", "scientificName": "Lepidium densiflorum", "scientificNameAuthorship": "Schrad.", "genus": "Lepidium", "subgenus": "", "specificEpithet": "densiflorum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles D. Richards", "recordNumber": "2444", "verbatimEventDate": "1949-07-17", "habitat": "Growing along road on summit of bluff.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "West Bluff", "decimalLatitude": "47.46428", "decimalLongitude": "-87.968753", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}