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": ""}
  1947-09-20 AZO4_   43.51863 o^  corollata !          xad Euphorbia corollata    Euphorbiaceae E    michigan Y  big prairie desert. 4  UNCOMMON. h`d   Anton A. Reznicek / RS  United States l;  m272 =; U9 
{"catalogNumber": "", "order": "", "family": "Euphorbiaceae", "scientificName": "Euphorbia corollata", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "corollata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "", "recordNumber": "M272", "verbatimEventDate": "1947-09-20", "habitat": "", "occurrenceRemarks": "Uncommon.", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Big Prairie Desert.", "decimalLatitude": "43.51863", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}