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": ""}
  4fd Celtis       4x UNITED STATES    zDO BERRIEN  rich ground with other trees. plentiful. CAWR      :IHy charles k. dodge  of 1356645 s.n. Z#q96  41.94732 .   $sI) celtis occidentalis    1917-08-27 - *.+  Cannabaceae eC    T michigan 
{"catalogNumber": "1356645", "order": "", "family": "Cannabaceae", "scientificName": "Celtis occidentalis", "scientificNameAuthorship": "", "genus": "Celtis", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles K. Dodge", "recordNumber": "s.n.", "verbatimEventDate": "1917-08-27", "habitat": "Rich ground with other trees. Plentiful.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Berrien", "municipality": "", "locality": "", "decimalLatitude": "41.94732", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}