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": ""}
   RV+  TABACUM          niotianVa xe7O.     f*fU Solanales  z ^ ICOTIANA TABACUM   1524 *Jw[C    mJ]  So|anaceae  4719 pNrc     A walter n. koelz  |ei KULLU KULU, KULU, KANGRA, PUNJAB pO 
{"catalogNumber": "", "order": "Solanales", "family": "Solanaceae", "scientificName": "Nicotiana tabacum", "scientificNameAuthorship": "", "genus": "Nicotiana", "subgenus": "", "specificEpithet": "tabacum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "4719", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Kullu", "municipality": "", "locality": "Kulu, Kulu, Kangra, Punjab", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1524", "maximumElevationInMeters": ""}