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 Xw  1952-06-24 9M18   xyRuJ canadensis  L cornaceae  STAR SIDING CEDAR CUTTING 1l$f    amichigan 46.339246 YXF (   )  Alger   R anton a. rezn|cek  l. QvzW     [L tS Cornus canadensis     ,gKn! S.N.  Ki4I 1279987  Cornus >=&   SR@  R. SMITH  [ -86.375649
{"catalogNumber": "1279987", "order": "", "family": "Cornaceae", "scientificName": "Cornus canadensis", "scientificNameAuthorship": "L.", "genus": "Cornus", "subgenus": "", "specificEpithet": "canadensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "R. Smith", "recordNumber": "s.n.", "verbatimEventDate": "1952-06-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Alger", "municipality": "", "locality": "Star Siding Cedar Cutting", "decimalLatitude": "46.339246", "decimalLongitude": "-86.375649", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}