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": ""}
   UNITED STATES D4    ?ahTe POAC3AE  sx 1875-09-20 POALES V*P;     K(O1  1416651   missouri U   UIRGINICA Zg    S-jVg Contact UM Herbarium  S?u heinrich k.d. eggert  leersia 9GAaL   Sw  [ 1624  Aqp LEERSIA VIRGINICA   Willd. E   
{"catalogNumber": "1416651", "order": "Poales", "family": "Poaceae", "scientificName": "Leersia virginica", "scientificNameAuthorship": "Willd.", "genus": "Leersia", "subgenus": "", "specificEpithet": "virginica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Heinrich K.D. Eggert", "recordNumber": "1624", "verbatimEventDate": "1875-09-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Missouri", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}