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": ""}
   f4@ SCIRPUS ATROCINCTUS ATROCINCTUS h?c   /?B4 Cyeraceae  edge of pond near center of caribou iasland B  carl o. grassl i8  FERNALD .+z   V THUNDER BAY   $  47â° 20' n 85â° 47' w long SCIRPUS H       bX! CARIBOU ISLAND CANADA   f   1931-07-30 .^h$     1401929      !+ ontario
{"catalogNumber": "1401929", "order": "", "family": "Cyperaceae", "scientificName": "Scirpus atrocinctus", "scientificNameAuthorship": "Fernald", "genus": "Scirpus", "subgenus": "", "specificEpithet": "atrocinctus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "", "verbatimEventDate": "1931-07-30", "habitat": "Edge of pond near center of Caribou Island", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Thunder Bay", "municipality": "", "locality": "Caribou Island", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "47\u00c2\u00b0 20' N 85\u00c2\u00b0 47' W Long", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}