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": ""}
    ` 1950-07-07    ~  c louisiana  UNRqo 1246474     / g.l. webster & r.l. wilbur 2 MI W OF LEANDER (3 MI FROM BORDER OF RAPIOES PARISH) _  3232 .P      pdR!; malpighiales     chapm. L&   Vernon Ea   J/a EUPHORBIA DISCOIDALIS  disc0idalis F]Z  
{"catalogNumber": "1246474", "order": "Malpighiales", "family": "", "scientificName": "Euphorbia discoidalis", "scientificNameAuthorship": "Chapm.", "genus": "", "subgenus": "", "specificEpithet": "discoidalis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "G.L. Webster & R.L. Wilbur", "recordNumber": "3232", "verbatimEventDate": "1950-07-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Louisiana", "county": "Vernon", "municipality": "", "locality": "2 mi W of Leander (3 mi from border of Rapides Parish)", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}