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": ""}
   crus-corvi  B   rJG S.N.     |E CAREX   CSm CYPERACEAE  GLEN ELLYN O..      1562481  <u   g SHUTTLEW. EX KUNZE  JWlq Illinois  DUPAGE /       S 1897-08-04
{"catalogNumber": "1562481", "order": "", "family": "Cyperaceae", "scientificName": "", "scientificNameAuthorship": "Shuttlew. ex Kunze", "genus": "Carex", "subgenus": "", "specificEpithet": "crus-corvi", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "1897-08-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Illinois", "county": "DuPage", "municipality": "", "locality": "Glen Ellyn", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}