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": ""}
      z Buch.-Ham. ex D. Don  S INDIA      polygonum runcinatum 9pT9   runcinatum w &  1950-07-23 =7H  CARYOPHYLLALES d^   nnhL 1497806    POLYGONUM o:     3^jyx 2134  takubama, naga hills 70V4/   NO DATA 9^  
{"catalogNumber": "1497806", "order": "Caryophyllales", "family": "", "scientificName": "Polygonum runcinatum", "scientificNameAuthorship": "Buch.-Ham. ex D. Don", "genus": "Polygonum", "subgenus": "", "specificEpithet": "runcinatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1950-07-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "", "county": "no data", "municipality": "", "locality": "Takubama, Naga Hills", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "2134", "maximumElevationInMeters": ""}