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": ""}
  n7D  47.194092  ,$=C6 caryophyllales  Lake Linden. lM   1925-07-20 A    michigan PO+0     oliver a. farwell g    AVICULARE #)   % G:9 -88.407339   %Z Polygonum aviculare Polygonum  F  7476 ;      UNITED STATES Houghton A[~j    & 1463091    9  v Polygonaceae  )e l.
{"catalogNumber": "1463091", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Polygonum aviculare", "scientificNameAuthorship": "L.", "genus": "Polygonum", "subgenus": "", "specificEpithet": "aviculare", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Oliver A. Farwell", "recordNumber": "7476", "verbatimEventDate": "1925-07-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Houghton", "municipality": "", "locality": "Lake Linden.", "decimalLatitude": "47.194092", "decimalLongitude": "-88.407339", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}