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": ""}
 GAHAR, PROVINCE OF BAKHTIARI i!    N  k Walter N. Koelz  CHAHAR MAHAAL AND BAKHTIARI _z ~$  polygonum cognatum sz    v ` 2286 DRY PLAIN  f        no data 3             5 1497648
{"catalogNumber": "1497648", "order": "", "family": "", "scientificName": "Polygonum cognatum", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "", "verbatimEventDate": "", "habitat": "Dry plain", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Chahar Mahaal and Bakhtiari", "county": "no data", "municipality": "", "locality": "Gahar, Province of Bakhtiari", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "2286", "maximumElevationInMeters": ""}