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": ""}
  :rzfi BRASSICACEAE  - 1972-07-21   /mn!y 44.749632    4(v*| -85.0216     4& lepidium densiflorum      91 v,% q  excelsior twp. dN     Brassicales Na  densiflorum Lx     ,< schrad.  along roadside. nU:  United St4tes fYcc; 
{"catalogNumber": "", "order": "Brassicales", "family": "Brassicaceae", "scientificName": "Lepidium densiflorum", "scientificNameAuthorship": "Schrad.", "genus": "", "subgenus": "", "specificEpithet": "densiflorum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "91", "verbatimEventDate": "1972-07-21", "habitat": "Along roadside.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "Excelsior Twp.", "decimalLatitude": "44.749632", "decimalLongitude": "-85.0216", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}