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": ""}
   ?$ Dorud  ,LP^m ledeb.           `-rBg 1941-08-12    U 1524   2p O  drud, province of luristan   -IwT4a 18471  ASTERACEAE  90   juncea 3Ft  iran q pp!  Asterales wYB*  
{"catalogNumber": "", "order": "Asterales", "family": "Asteraceae", "scientificName": "", "scientificNameAuthorship": "Ledeb.", "genus": "", "subgenus": "", "specificEpithet": "juncea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "18471", "verbatimEventDate": "1941-08-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Iran", "stateProvince": "", "county": "Dorud", "municipality": "", "locality": "Dorud, Province of Luristan", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1524", "maximumElevationInMeters": ""}