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": ""}
 @o (marshall) borkh.   F grpm 46595   >cMH Mary B. Fallass   Sgcze castanea    H1= jackson  r* UNITED STATES  FAGACEAE tJy      yL 1337246  g Fagales    DENTATA   CASTANEA DENTATA @AVQ        
{"catalogNumber": "1337246", "order": "Fagales", "family": "Fagaceae", "scientificName": "Castanea dentata", "scientificNameAuthorship": "(Marshall) Borkh.", "genus": "Castanea", "subgenus": "", "specificEpithet": "dentata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Mary B. Fallass", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "GRPM 46595", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Jackson", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}