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": ""}
United States Vyu   HALORAGACEAE 2       aa Arthur Cronquist  1947-04-12 8)  GEORGIA --R  pinntum -`4     T? SAXIFRAGALES  [  (Walter) Britto4n, Sterns & Pog*genb.  ,P EFFINGHAM     | MITCHELL S. ALIX, ROBIN W. SCRIBAILO 1223480 [!    myriophyllum pinnatum o   Myriophyllum _  4293 _ZD 
{"catalogNumber": "1223480", "order": "Saxifragales", "family": "Haloragaceae", "scientificName": "Myriophyllum pinnatum", "scientificNameAuthorship": "(Walter) Britton, Sterns & Poggenb.", "genus": "Myriophyllum", "subgenus": "", "specificEpithet": "pinnatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Mitchell S. Alix, Robin W. Scribailo", "recordedBy": "Arthur Cronquist", "recordNumber": "4293", "verbatimEventDate": "1947-04-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Georgia", "county": "Effingham", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}