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": ""}
    (a. gray) britton Dr   NC 1251962 47.468798 :    = DOELLINGERIA UMBELLATA VAR. PUBENS   s Keweenaw  michigan 5    !S NEAR ESREY PARK.   ?&,1o var.    Rocky sh0re of Lake Superior  TBB   o.  doellingeria  charles d. richards *sj    &l ASTERACEAE 
{"catalogNumber": "1251962", "order": "", "family": "Asteraceae", "scientificName": "Doellingeria umbellata var. pubens", "scientificNameAuthorship": "(A. Gray) Britton", "genus": "Doellingeria", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "var.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles D. Richards", "recordNumber": "", "verbatimEventDate": "", "habitat": "Rocky shore of Lake Superior", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Keweenaw", "municipality": "", "locality": "near Esrey Park.", "decimalLatitude": "47.468798", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}