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": ""}
  B); (L.) A. LÃ¶v7e 2842 !_[    Tura Mountain T&      M Thakur Rup Chand   ) @ chinensis  1950-03-17 2e2 b   (A%A Persigaria chinensis    f.i/ 1219   keP9 polygonaceae 1497556 1&    ~~n  india  aa&< MEGHALAYA  ym persicaria   Caryophyllales FKu7- 
{"catalogNumber": "1497556", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Persicaria chinensis", "scientificNameAuthorship": "(L.) A. L\u00c3\u00b6ve", "genus": "Persicaria", "subgenus": "", "specificEpithet": "chinensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thakur Rup Chand", "recordNumber": "2842", "verbatimEventDate": "1950-03-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "", "municipality": "", "locality": "Tura Mountain", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1219", "maximumElevationInMeters": ""}