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": ""}
     1941-05-20 DORUD L  Poaceae ~    (banks & sol.) hochst. X&     dnSP3 Heteranthelium piliferum    8So^ Poales Walter N. Koelz ,W   iran p:4g  1486932 V>TH9    PILIFERUM q@/E   17630 P    =:# HAYFIELD lorestan #j  heteranthelium  I=L  dorud, province of luristan TN 
{"catalogNumber": "1486932", "order": "Poales", "family": "Poaceae", "scientificName": "Heteranthelium piliferum", "scientificNameAuthorship": "(Banks & Sol.) Hochst.", "genus": "Heteranthelium", "subgenus": "", "specificEpithet": "piliferum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "17630", "verbatimEventDate": "1941-05-20", "habitat": "Hayfield", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Iran", "stateProvince": "Lorestan", "county": "Dorud", "municipality": "", "locality": "Dorud, Province of Luristan", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}