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": ""}
   aj4 G. SIMON, J. MLANGWA, W. KINDEKETA, M. MOLLEL & A. KAMITSES  /9%u 1940  ?=5x -3;.4241667 2000-04-13 c   i>c megalocarpus    croton ]Y0#W     HUTCH.  !:z/   1542968  _l      +j~ Arusha   HBO malpighiales     V4 common tree ca. 20 cm high. flower yellowish; fruit brown
{"catalogNumber": "1542968", "order": "Malpighiales", "family": "", "scientificName": "", "scientificNameAuthorship": "Hutch.", "genus": "Croton", "subgenus": "", "specificEpithet": "megalocarpus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "G. Simon, J. Mlangwa, W. Kindeketa, M. Mollel & A. Kamitses", "recordNumber": "", "verbatimEventDate": "2000-04-13", "habitat": "", "occurrenceRemarks": "Common tree ca. 20 cm high. Flower yellowish; fruit brown", "associatedTaxa": "", "country": "", "stateProvince": "Arusha", "county": "", "municipality": "", "locality": "", "decimalLatitude": "-3.4241667", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1940", "maximumElevationInMeters": ""}