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": ""}
    1968-05-11 6/w   ,GU) americanum 1464908 GM      Saxifragales K@%0  CHRYSOSPLENIUM vk    schwein. ex hook. !   MIDLAND k$h~   e michigan  Frederick W. Case, Jr. 5   %$5q% Chrysosplenium americamum     
{"catalogNumber": "1464908", "order": "Saxifragales", "family": "", "scientificName": "Chrysosplenium americanum", "scientificNameAuthorship": "Schwein. ex Hook.", "genus": "Chrysosplenium", "subgenus": "", "specificEpithet": "americanum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Frederick W. Case, Jr.", "recordNumber": "", "verbatimEventDate": "1968-05-11", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Midland", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}