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": ""}
  s prenanthes   k`Gm edward g. voss  [ -84.869   45.8584 =4*    R "Leaves green, the veins heavily flushed with red." "Cf. No. 16793 for fertile specimen."      x astera|es  michigan f0v o     F[ yt St. Helena Island.  racemosa QQ)   z only this one plant seen on damp gravelly shore at west end,  @ 16783  8PN United States  147N5862 ?7K4A   michx. ` .X 
{"catalogNumber": "1475862", "order": "Asterales", "family": "", "scientificName": "", "scientificNameAuthorship": "Michx.", "genus": "Prenanthes", "subgenus": "", "specificEpithet": "racemosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "16783", "verbatimEventDate": "", "habitat": "Only this one plant seen on damp gravelly shore at west end,", "occurrenceRemarks": "\"Leaves green, the veins heavily flushed with red.\" \"Cf. No. 16793 for fertile specimen.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "St. Helena Island.", "decimalLatitude": "45.8584", "decimalLongitude": "-84.869", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}