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": ""}
18450A b:4  DORUD, PROUINCE OFg LURISTAN G  i. riedl .s3     ,U<;? MALVALES 1507863 q   ]v(  Alcea walter n. koelz 1|  Lorestan Z@    koelzii u   ALCEA KOELZI*I /   Malvaceae xz9  DORUD ^T      ~+bM Iran     1941-08-01 1524 &e    
{"catalogNumber": "1507863", "order": "Malvales", "family": "Malvaceae", "scientificName": "Alcea koelzii", "scientificNameAuthorship": "I. Riedl", "genus": "Alcea", "subgenus": "", "specificEpithet": "koelzii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "18450a", "verbatimEventDate": "1941-08-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Iran", "stateProvince": "Lorestan", "county": "Dorud", "municipality": "", "locality": "Dorud, Province of Luristan", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1524", "maximumElevationInMeters": ""}