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": ""}
   Usrnd W. Boott  -84.766302 ?     uO  CAREX PRAEGRACILIS   poales _f   ~`P;E 1982-06-14 UNITED STATES o7 E+    !B~I Michigan praegracilis !3      5 % ANTON A. REZNICEK   4 42.268734    G carex   Dry median with Poa pratensis and Agropyron repens. (X.4h   `T$A calhoun
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "Carex praegracilis", "scientificNameAuthorship": "W. Boott", "genus": "Carex", "subgenus": "", "specificEpithet": "praegracilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Anton A. Reznicek", "recordNumber": "", "verbatimEventDate": "1982-06-14", "habitat": "Dry median with Poa pratensis and Agropyron repens.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Calhoun", "municipality": "", "locality": "", "decimalLatitude": "42.268734", "decimalLongitude": "-84.766302", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}