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": ""}
   1469669 Fd1    5u [presumably washtenaw co.! - note coll. by walpole, same date & undoubtedly with c.b., pittsfield twp] MICHX. J;F  BOLYGONUM< xsxLd    michigan O> -   1E Caryophyllales POLYGONUM TENUE  KN5^R    K Dn% 1918-08-04   dg+Y S.N.  4mIm dry sandy field.   POLYGONACEAE q  7;      _Z|Do8 United States   ^LX4 cecil billington  ^n washtenaw
{"catalogNumber": "1469669", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Polygonum tenue", "scientificNameAuthorship": "Michx.", "genus": "Polygonum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Cecil Billington", "recordNumber": "s.n.", "verbatimEventDate": "1918-08-04", "habitat": "Dry sandy field.", "occurrenceRemarks": "[presumably Washtenaw Co.! - Note coll. By Walpole, same date & undoubtedly with C.B., Pittsfield Twp]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}