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": ""}
  CAREX GRAVIDA Z  canada    rainy river district, roseberry township, manitou mounds, n shore of rainy river, ca 6 km w of barwick. R 9<    Yz 1998-06-23      CYPERACEAE  8#&m   ONTARIO opnu         2B6p gravida     
{"catalogNumber": "", "order": "", "family": "Cyperaceae", "scientificName": "Carex gravida", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "gravida", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1998-06-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "Rainy River District, Roseberry Township, Manitou Mounds, N shore of Rainy River, ca 6 km W of Barwick.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}