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": ""}
  a caryophyllales 7883 4C   -83.78333 O7R   P Q 1937-10-08 42.28333 S]k     Q^k UNITED STATES   (Hy3> michigam     @ sagittata persicaria a        carl o. grassl -q;  1469413 U     
{"catalogNumber": "1469413", "order": "Caryophyllales", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Persicaria", "subgenus": "", "specificEpithet": "sagittata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "7883", "verbatimEventDate": "1937-10-08", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "42.28333", "decimalLongitude": "-83.78333", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}