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": ""}
1829 |@8   buch.-ham. ex d. don  d     mawphlang ^0M   @?l - 1497803    polygonacea3 [?   east khasi hills c9i  cliff in open V& f     w| thakur rup chand  Asd?  Meghalaya     8082  tyz  $CARYOPHYLLALES nn<QA  POLYGONUM RUNCINATUM RUw  
{"catalogNumber": "1497803", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Polygonum runcinatum", "scientificNameAuthorship": "Buch.-Ham. ex D. Don", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thakur Rup Chand", "recordNumber": "8082", "verbatimEventDate": "", "habitat": "Cliff in open", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Meghalaya", "county": "East Khasi Hills", "municipality": "", "locality": "Mawphlang", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1829", "maximumElevationInMeters": ""}