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": ""}
     3204  Z#              ` 1956-08-31    Sand. Canopy dominant: Quercus velutina; subdominants: Quercus alba, Carya oalis, Prunus serotina. Understory dominant: Sassafras albidum. Herb dominants: Pteridium aquilinum, Gaylussacia baccata, Carex pensylvanica, Sassafras albidum, Quercus alba. %     1517807 e jA  
{"catalogNumber": "1517807", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "3204", "verbatimEventDate": "1956-08-31", "habitat": "Sand. Canopy dominant: Quercus velutina; subdominants: Quercus alba, Carya ovalis, Prunus serotina. Understory dominant: Sassafras albidum. Herb dominants: Pteridium aquilinum, Gaylussacia baccata, Carex pensylvanica, Sassafras albidum, Quercus alba.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}