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": ""}
1645004  M >t    1932 NtN<      M 610   rIqss malpighiales 43791   DCk    Mallotus paniculatus iUc       no data    m  paniculatus  CHINA 1@       MALLOTUS e2c   ^~O*% N. K. Chun & C. L. Tso
{"catalogNumber": "1645004", "order": "Malpighiales", "family": "", "scientificName": "Mallotus paniculatus", "scientificNameAuthorship": "", "genus": "Mallotus", "subgenus": "", "specificEpithet": "paniculatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "N. K. Chun & C. L. Tso", "recordNumber": "43791", "verbatimEventDate": "1932", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "China", "stateProvince": "", "county": "no data", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "610", "maximumElevationInMeters": ""}