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": ""}
ALCONA U.  12539 %9    XD SYMPHYOTRICHUM      U asterales        ~ Mi chigan  Rk3 -83.3095  (A. GRAY) G. L. NESOM 3Tz0B  on wet sandy shores of Lake Huron; abundant.  b    symphyotrichum pilosum var. pringlei ~    pilosum t`   0o,Uf Asteraceae
{"catalogNumber": "", "order": "Asterales", "family": "Asteraceae", "scientificName": "Symphyotrichum pilosum var. pringlei", "scientificNameAuthorship": "(A. Gray) G. L. Nesom", "genus": "Symphyotrichum", "subgenus": "", "specificEpithet": "pilosum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "12539", "verbatimEventDate": "", "habitat": "on wet sandy shores of Lake Huron; abundant.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Alcona", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.3095", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}