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": ""}
1956-06-10 BT    FREDERICK W. CASE, JR.        [[ asparagales   bg united tates -84.061916  oP   n /+ 43.430238  P] s.n. MICHIGAN ]bmM   c RACEMOSUM   1341090 c.+k    nF Saginaw Maianthemum racemosum gd2       W maianthemum  V SEC 24 T12N R3E  e]  (L.) Link asparagaceae  WM ~ 
{"catalogNumber": "1341090", "order": "Asparagales", "family": "Asparagaceae", "scientificName": "Maianthemum racemosum", "scientificNameAuthorship": "(L.) Link", "genus": "Maianthemum", "subgenus": "", "specificEpithet": "racemosum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Frederick W. Case, Jr.", "recordNumber": "s.n.", "verbatimEventDate": "1956-06-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Saginaw", "municipality": "", "locality": "Sec 24 T12N R3E", "decimalLatitude": "43.430238", "decimalLongitude": "-84.061916", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}