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": ""}
   2n PRUNUS  eV%7J 1917-07-08  e prunus bumila  goose island. QXY  429 2_ssB   1  Rosaceae  *, michigan   pumila N  l. M    , ROSALES 45.922237 7:  1468267 *    + gravelly shore.  Et United States  john h. ehlers ktDim  -84.430313 uT yw    &;_ mackinac   
{"catalogNumber": "1468267", "order": "Rosales", "family": "Rosaceae", "scientificName": "Prunus pumila", "scientificNameAuthorship": "L.", "genus": "Prunus", "subgenus": "", "specificEpithet": "pumila", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "429", "verbatimEventDate": "1917-07-08", "habitat": "Gravelly shore.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Mackinac", "municipality": "", "locality": "Goose Island.", "decimalLatitude": "45.922237", "decimalLongitude": "-84.430313", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}