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": ""}
 =?- washtenaw 1471327 n,bt    v spiraea tomentosa in sedgey margn. ]mY|   -84.06667 &   7746 RN   rosaceae  :sr%    Y<0 1937-10-15  tomentosa |wg   l. 8$         42.35 F   MC CARL O. GRASSL 
{"catalogNumber": "1471327", "order": "", "family": "Rosaceae", "scientificName": "Spiraea tomentosa", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "tomentosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "7746", "verbatimEventDate": "1937-10-15", "habitat": "In sedgey margin.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "42.35", "decimalLongitude": "-84.06667", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}