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 4  ACER NIGRUM 7   /v p#n -86626812  @XzY berrien CECIL BILLINGTON wj#   fB [leaves less lobed than usual] ACER 72    e- 41.836087      (g)X F. MICHX.    . nigrum   C,+ sapindaceae   c FLOODPLAIN s.n. -^  ANTON  A. REZNICEK r ~   Rac= 1919-07-26 michigan2   Q) 1333935  TbE M warren wood   lERs sapindales
{"catalogNumber": "1333935", "order": "Sapindales", "family": "Sapindaceae", "scientificName": "Acer nigrum", "scientificNameAuthorship": "F. Michx.", "genus": "Acer", "subgenus": "", "specificEpithet": "nigrum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Cecil Billington", "recordNumber": "s.n.", "verbatimEventDate": "1919-07-26", "habitat": "floodplain", "occurrenceRemarks": "[leaves less lobed than usual]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Berrien", "municipality": "", "locality": "Warren Woods", "decimalLatitude": "41.836087", "decimalLongitude": "-86.626812", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}