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": ""}
 7C e  Pennsylvania    &XU 1447436  ON RIVER FLATS  |[   i (Engelm.) Fernald      John Bright uz     1936-08-15 O><     %_^ Island in Allegheny River.       +aijx allegDheny JUNCUS BREVICAUDATUS 8:Q   
{"catalogNumber": "1447436", "order": "", "family": "", "scientificName": "Juncus brevicaudatus", "scientificNameAuthorship": "(Engelm.) Fernald", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John Bright", "recordNumber": "", "verbatimEventDate": "1936-08-15", "habitat": "On river flats", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Pennsylvania", "county": "Allegheny", "municipality": "", "locality": "Island in Allegheny River.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}