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": ""}
Elaeagnus umbellata PTJ >      $^ 4540  thunb. 8!&      Baijnath, Punjab iyZ]  elaeagnus K   Himachal Pr4desh EuhY   ROSALES Hb i        fhaA 1508004  = umbellata 1933-05-19 2F.   Walter N. Koelz 4rO  KANGRA O 
{"catalogNumber": "1508004", "order": "Rosales", "family": "", "scientificName": "Elaeagnus umbellata", "scientificNameAuthorship": "Thunb.", "genus": "Elaeagnus", "subgenus": "", "specificEpithet": "umbellata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "4540", "verbatimEventDate": "1933-05-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Himachal Pradesh", "county": "Kangra", "municipality": "", "locality": "Baijnath, Punjab", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}