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": ""}
 XN henry t. darlington    A[ 1259521  Balb. (+RhJ  alpinus )>2F   F2 1919-08-25    X=3 potamogeton Potamogetonaceae U          g [active barcode. on same sheet as potamogeton epihydrus with inactive barcode 1259520.]  rN nV United States  Vs<Xx POTAMOGETON ALPINUS B&D 3038 s~e   7:E upper reaches of slate river [s. of lake ;gogebic]  0v MICHIGAN  GOGEBIC <J  
{"catalogNumber": "1259521", "order": "", "family": "Potamogetonaceae", "scientificName": "Potamogeton alpinus", "scientificNameAuthorship": "Balb.", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "alpinus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Henry T. Darlington", "recordNumber": "B&D 3038", "verbatimEventDate": "1919-08-25", "habitat": "", "occurrenceRemarks": "[Active barcode. On same sheet as Potamogeton epihydrus with inactive barcode 1259520.]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Gogebic", "municipality": "", "locality": "Upper reaches of Slate River [S. of Lake Gogebic]", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}