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": ""}
1543063 rh    1BJ* china    XG  CROTON TIGLIUM kwantung college of traditional chinese medicine #m%   TIGLIUM q5    @5 w 1981-01-21  cp croton  SHIU YING HU O     Euphorbiaceae BX|#     MQ  GUANGZHOU        
{"catalogNumber": "1543063", "order": "", "family": "Euphorbiaceae", "scientificName": "Croton tiglium", "scientificNameAuthorship": "", "genus": "Croton", "subgenus": "", "specificEpithet": "tiglium", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Shiu Ying Hu", "recordNumber": "", "verbatimEventDate": "1981-01-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "China", "stateProvince": "", "county": "Guangzhou", "municipality": "", "locality": "Kwantung College of Traditional Chinese Medicine", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}