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": ""}
  [EFc 7916    PANCAKE RIVER.     carl o. grassl I,Pf+   SGBH ONTARIO    u9Z algoma     a8,   46.966667   ;C 46Â° 58' N 84Â° 40' W   Ne 1447406  Poales Cw)p   brevicaudatus d   (ENGELM.) FERALD [`  -84.666667 hZ 
{"catalogNumber": "1447406", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "(Engelm.) Fernald", "genus": "", "subgenus": "", "specificEpithet": "brevicaudatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "7916", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Ontario", "county": "Algoma", "municipality": "", "locality": "Pancake River.", "decimalLatitude": "46.966667", "decimalLongitude": "-84.666667", "verbatimCoordinates": "46\u00c2\u00b0 58' N 84\u00c2\u00b0 40' W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}