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": ""}
  x50Ev 1511382 Walter N. Koelz g:       $C< KULLU  m above puling, kulu      B59i^ LINDL.   Edge of forest @       o chaerophyllum 1930-06-30 ~  304 c    
{"catalogNumber": "1511382", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "Lindl.", "genus": "Chaerophyllum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "304", "verbatimEventDate": "1930-06-30", "habitat": "Edge of forest", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Kullu", "municipality": "", "locality": "Above Puling, Kulu", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}