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": ""}
  var. I  42.28743 `iLJ     ,YAB_ subulatum  Michigan p) s6   c 1916-09-16  xy 1251946   cecil billington  FM    -83.15312 P   Oakwod z0     united states ^    SYMPHYOTRICHUM c^      asterales
{"catalogNumber": "1251946", "order": "Asterales", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Symphyotrichum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "var.", "infraspecificEpithet": "subulatum", "identifiedBy": "", "recordedBy": "Cecil Billington", "recordNumber": "", "verbatimEventDate": "1916-09-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Oakwood", "decimalLatitude": "42.28743", "decimalLongitude": "-83.15312", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}