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": ""}
DECATUR P 48L   united states -`N       RN xU GEORGE L. AMES   ~x6e% ALNIFOLI=A 1539936 >GZ&     Tennessee 8B    RHAMNUS AmLNIFOLIA 1IU8z    L'HÃ©r. -ts>$   rhamnus Klv^N        rhamnaceae ROSALES pDw9 
{"catalogNumber": "1539936", "order": "Rosales", "family": "Rhamnaceae", "scientificName": "Rhamnus alnifolia", "scientificNameAuthorship": "L'H\u00c3\u00a9r.", "genus": "Rhamnus", "subgenus": "", "specificEpithet": "alnifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George L. Ames", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Tennessee", "county": "Decatur", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}