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": ""}
   Juncus brevicaudatus   ISLAND IN 4LLEGHENY RIVER. U   +hmQ john bright  H Juncus 1447436 EF1a    PENNSYLVANIA F  ALLEGHENY f@    uV& United States  (Engelm.) Fernald R   brevicaudatus K   & N/M on river flats   1936-08-15 d)       s? poales  -M5G  juncaceae  
{"catalogNumber": "1447436", "order": "Poales", "family": "Juncaceae", "scientificName": "Juncus brevicaudatus", "scientificNameAuthorship": "(Engelm.) Fernald", "genus": "Juncus", "subgenus": "", "specificEpithet": "brevicaudatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John Bright", "recordNumber": "", "verbatimEventDate": "1936-08-15", "habitat": "On river flats", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Pennsylvania", "county": "Allegheny", "municipality": "", "locality": "Island in Allegheny River.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}