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": ""}
South Carolina R.  michx. w0     1939-07-10 *+U      Haloragaceae k=  Myriophyllum  Du   w&L saxifragales   W d7] 1223446   R.K. GODFREY & R.M. TRYON, JR. $    CREEK f    c GOURDIN, 4 MI. SOUTHEAST OF  yT=f1 WILLIAMSBURG  YMN myriophyllum heterohyllum heterophyllum V    P[  robin w. scribailo, mitchell s. alix  rg united states
{"catalogNumber": "1223446", "order": "Saxifragales", "family": "Haloragaceae", "scientificName": "Myriophyllum heterophyllum", "scientificNameAuthorship": "Michx.", "genus": "Myriophyllum", "subgenus": "", "specificEpithet": "heterophyllum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Robin W. Scribailo, Mitchell S. Alix", "recordedBy": "R.K. Godfrey & R.M. Tryon, Jr.", "recordNumber": "", "verbatimEventDate": "1939-07-10", "habitat": "Creek", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "South Carolina", "county": "Williamsburg", "municipality": "", "locality": "Gourdin, 4 mi. southeast of", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}