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": ""}
     Fj UNITED STATES   /Jn. MICHIGAN   kSn4 43.594468 1914-08-06 l     ALNUS INCANA SUBSP. RUGOSvA 1jl       XfFO RUGOSA  (du roi) r.t. clausen @h        -T  A.J. PIETERS  
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Alnus incana subsp. rugosa", "scientificNameAuthorship": "(Du Roi) R.T. Clausen", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "rugosa", "identifiedBy": "", "recordedBy": "A.J. Pieters", "recordNumber": "", "verbatimEventDate": "1914-08-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "43.594468", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}