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": ""}
      PR 21312   Hj%b mallotus  g no data  7@ EUPHORBIACEAE   NT( < GUANGDONG 1644870 :Sa        mallotus apelta 2owj%    MALPIGHIALES  R   1932-08-04 M,h&  CHINA    PAAK MUK IP, YAM NA SHAN [YIT NGA SHAN] &   
{"catalogNumber": "1644870", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Mallotus apelta", "scientificNameAuthorship": "", "genus": "Mallotus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "21312", "verbatimEventDate": "1932-08-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "China", "stateProvince": "Guangdong", "county": "no data", "municipality": "", "locality": "Paak Muk Ip, Yam Na Shan [Yit Nga Shan]", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}