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": ""}
 O u - MAGNA  b `  7UNITED STATES   Poales 9W   3 miles Raceland b!E^T    x poaceae     OZenm 1423719 louisiana :x  leroy h. harvey   vTn   + SETARIA MAGNA    GRISEB.  `(` 7643  1967-09-03 T      ;p SETARIA   
{"catalogNumber": "1423719", "order": "Poales", "family": "Poaceae", "scientificName": "Setaria magna", "scientificNameAuthorship": "Griseb.", "genus": "Setaria", "subgenus": "", "specificEpithet": "magna", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "LeRoy H. Harvey", "recordNumber": "7643", "verbatimEventDate": "1967-09-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Louisiana", "county": "", "municipality": "", "locality": "3 miles Raceland", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}