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": ""}
  a x@ 1959-08-19 amaranthaceae n5,9    = (TORR.) BENTH. EX S. WATS. SAN BERNARDINO x;  P.C. Euerett & EK. Balls 2j*         23892 <~vfO       Amaranthus .o      # ) fimbriatus   
{"catalogNumber": "", "order": "", "family": "Amaranthaceae", "scientificName": "", "scientificNameAuthorship": "(Torr.) Benth. ex S. Wats.", "genus": "Amaranthus", "subgenus": "", "specificEpithet": "fimbriatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "P.C. Everett & E.K. Balls", "recordNumber": "23892", "verbatimEventDate": "1959-08-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "San Bernardino", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}