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": ""}
  QJ EUPHORBIACEAE   CROT0N TIGLIUM rq<kn    c?xi L.  1981-01-21 K<C    7<$zD cultivated in medicinal plant garden SHIU YING HU m;      Q Guangdong       w8? croton  TIGLIUM AvA_]  1543063 qAL_   Kwantung College of Traditional Chinese Medicine . 
{"catalogNumber": "1543063", "order": "", "family": "Euphorbiaceae", "scientificName": "Croton tiglium", "scientificNameAuthorship": "L.", "genus": "Croton", "subgenus": "", "specificEpithet": "tiglium", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Shiu Ying Hu", "recordNumber": "", "verbatimEventDate": "1981-01-21", "habitat": "cultivated in Medicinal plant garden", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Guangdong", "county": "", "municipality": "", "locality": "Kwantung College of Traditional Chinese Medicine", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}