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": ""}
  _CI Vernonia 41.84932 K S U   ^ raf.   E* MISSURICA  =A 1756  Asterales B/~>       B[r 1950-08-18  Z !sb abandoned napanee silt loam field    1258294 ;ah     _< vernonia missurica n [33 FLS/HEAD]     
{"catalogNumber": "1258294", "order": "Asterales", "family": "", "scientificName": "Vernonia missurica", "scientificNameAuthorship": "Raf.", "genus": "Vernonia", "subgenus": "", "specificEpithet": "missurica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1756", "verbatimEventDate": "1950-08-18", "habitat": "Abandoned Napanee silt loam field", "occurrenceRemarks": "[33 fls/head]", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "41.84932", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}