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": ""}
  a poles  Zx CYPERACEAE       CANADA  Bi  AQUATILIS Z          ~&~^ 06-245  e (drejer) boott  & 68.86833    KDVI 2O06-07-29 CAREX H57   -[ t var.  carex aquatilis var. stans | 
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex aquatilis var. stans", "scientificNameAuthorship": "(Drejer) Boott", "genus": "Carex", "subgenus": "", "specificEpithet": "aquatilis", "verbatimTaxonRank": "var.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "06-245", "verbatimEventDate": "2006-07-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "68.86833", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}