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": ""}
     yd`=Q ROBERT W. SMITH  s&hp rudbeckia hQirta  [zc ly. Aterales iKl   Lenawee f_B     !g7Ah floodplain thicket  @TgN a6steraceae   i 46T 1647    1986-06-26 zn)-6  RUDBECKIA j$WZ   F E michigan   C3 n. of R. Raisin, w. of Main St., Adrian     J1+ united states 
{"catalogNumber": "", "order": "Asterales", "family": "Asteraceae", "scientificName": "Rudbeckia hirta", "scientificNameAuthorship": "L.", "genus": "Rudbeckia", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert W. Smith", "recordNumber": "1647", "verbatimEventDate": "1986-06-26", "habitat": "floodplain thicket", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Lenawee", "municipality": "", "locality": "n. of R. Raisin, w. of Main St., Adrian", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}