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": ""}
 *[ 4 not evident  H2 united states    confederate hill, nashville sPX   flavula Tllmz    ranunculales     VP 4 corydalis flavula   xx7c Corydalis          s.n. 1500782 wu3    DAVIDSON  iH.    L5N grpm 44325 tennessee VC 
{"catalogNumber": "1500782", "order": "Ranunculales", "family": "", "scientificName": "Corydalis flavula", "scientificNameAuthorship": "", "genus": "Corydalis", "subgenus": "", "specificEpithet": "flavula", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Not evident", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "GRPM 44325", "associatedTaxa": "", "country": "United States", "stateProvince": "Tennessee", "county": "Davidson", "municipality": "", "locality": "Confederate Hill, Nashville", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}