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": ""}
1957-08-06 Q  ommon  crvp   x  Croton arkansas Ch&Lf   <7+2p Delzie Demaree   wVox< p. o. bradford  [ DRY OPEN RIDGE WOODS    |T9 croton monathogynus 73 0*a   michx. v_i      4~m! 39624  M`w 1543495  EUPHORBIACEAE  $V   2mY White  5 malpighiales unitedf states ]    monanthogynus 4t  
{"catalogNumber": "1543495", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Croton monanthogynus", "scientificNameAuthorship": "Michx.", "genus": "Croton", "subgenus": "", "specificEpithet": "monanthogynus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Delzie Demaree", "recordNumber": "39624", "verbatimEventDate": "1957-08-06", "habitat": "Dry open ridge woods", "occurrenceRemarks": "Common", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "White", "municipality": "", "locality": "P. O. Bradford", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "73", "maximumElevationInMeters": ""}