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": ""}
Fred W. Rapp E  1938-7-21 4$n    Y)A  REHMANN   _ I pales    S- 1269423  nB IN THREE FEET OF WATER  Michigan holtM    SPARGANIUM EMERSUM !j    vB! EMERSUM   KALAMA2OO oxiM  2380-1 G>@-    ^)nh TYPHACEAE  (RMB sparganium -85.55569 ;8 W0  united states fuS   ve% Outlet of Bartn Lake, Vicksburg 42.0916  j 
{"catalogNumber": "1269423", "order": "Poales", "family": "Typhaceae", "scientificName": "Sparganium emersum", "scientificNameAuthorship": "Rehmann", "genus": "Sparganium", "subgenus": "", "specificEpithet": "emersum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Fred W. Rapp", "recordNumber": "2380-1", "verbatimEventDate": "1938-07-21", "habitat": "in three feet of water", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Kalamazoo", "municipality": "", "locality": "Outlet of Barton Lake, Vicksburg", "decimalLatitude": "42.0916", "decimalLongitude": "-85.55569", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}