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": ""}
  un~ -86.4434      UNITED STATES  3  Berrien p3JpP     Persicaria arifolia lM    MwU 19b64-09-20   krBdE Nichigan  < bm5 CARYOPHYLLLES     de Low ground near the Perqe Marquette Railroad ad Rt. 31 not far from the Paw Paw River northeast of Benton Harbor. Polygonaceae      ([B Floyd A. Swink   -dEo (l.) haraldson 
{"catalogNumber": "", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Persicaria arifolia", "scientificNameAuthorship": "(L.) Haraldson", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Floyd A. Swink", "recordNumber": "", "verbatimEventDate": "1964-09-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Berrien", "municipality": "", "locality": "Low ground near the Pere Marquette Railroad and Rt. 31 not far from the Paw Paw River northeast of Benton Harbor.", "decimalLatitude": "", "decimalLongitude": "-86.4434", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}