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": ""}
  2zVN ST. LOUIS  ,I ST. LOUIS schkuhr ex willd.  Y!  Carex BKV    umbellata M1   /syQE United States   CARLS A. GEYER  I.F   1390759 @gK          %e72 Missmouri      !| 1842-04  ^ poales
{"catalogNumber": "1390759", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "Schkuhr ex Willd.", "genus": "Carex", "subgenus": "", "specificEpithet": "umbellata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles A. Geyer", "recordNumber": "", "verbatimEventDate": "1842-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Missouri", "county": "St. Louis", "municipality": "", "locality": "St. Louis", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}