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": ""}
Kent 2    M sagittata  0~y=M polygonaceae  5p4  -85.6731  Q=~ persicaria sagittata    cQo R 1469401  ho 42.81971       q3fN4 1939-09-06  *exVM MICHIGAN 2889 rTj      @17 united states     
{"catalogNumber": "1469401", "order": "", "family": "Polygonaceae", "scientificName": "Persicaria sagittata", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "sagittata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "2889", "verbatimEventDate": "1939-09-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Kent", "municipality": "", "locality": "", "decimalLatitude": "42.81971", "decimalLongitude": "-85.6731", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}