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": ""}
  S.N. iw..[     SPARGANIUM  CHICAGO 0;r C   - 1893-07-04 engelm. 8Z   COOK 7x r] EURYCARPUM -x    WILLIAM S. MOFFATT pD T    !a Sparganium eurycarpum  UNISTED STATES ]K   yCU GRPM 42250       wb. POALES  Typhaceae eLs^0 
{"catalogNumber": "", "order": "Poales", "family": "Typhaceae", "scientificName": "Sparganium eurycarpum", "scientificNameAuthorship": "Engelm.", "genus": "Sparganium", "subgenus": "", "specificEpithet": "eurycarpum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "William S. Moffatt", "recordNumber": "s.n.", "verbatimEventDate": "1893-07-04", "habitat": "", "occurrenceRemarks": "GRPM 42250", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Cook", "municipality": "", "locality": "Chicago", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}