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": ""}
       BR Karong  Polygonaceae ykY=   3y8 3715   senapati ,K     persicaria perfoliata YYS,A  1950-09-24 M   Persicaria T/-]c   Manipur  Hp70  River bank k    PERFOLIATA  +(fP   
{"catalogNumber": "", "order": "", "family": "Polygonaceae", "scientificName": "Persicaria perfoliata", "scientificNameAuthorship": "", "genus": "Persicaria", "subgenus": "", "specificEpithet": "perfoliata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "3715", "verbatimEventDate": "1950-09-24", "habitat": "River bank", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Manipur", "county": "Senapati", "municipality": "", "locality": "Karong", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}