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": ""}
       , FIRSpT GEOLOGICAL SURVEY OF MICHIGAN, 1837Â1840, DOUGLASS HOUGHTON, STATE EOLOGIST; ABRAM SAGER, BOTANIST AND ZOOLOGIST, 1837; JOHN WRIGHT, STATE BOTANIST, 1838, ASSISTED BY GEORGE H. BULL [THE PENCIL LABEL IS THOUGHT TO BE THE WORK OF AN HERBARIUM ASSISTANT, CA. 1870, AND THE DATE 1838 IS PROBABLY ERRONEOUS.] [COORDINATES ARE FOR THE RIVER RAISIN AT DUNDEE]  Um 4 MICHIGAN               XJr 1220964     
{"catalogNumber": "1220964", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "First Geological Survey of Michigan, 1837\u00e2\u0080\u00931840, Douglass Houghton, State Geologist; Abram Sager, Botanist and Zoologist, 1837; John Wright, State Botanist, 1838, assisted by George H. Bull [The pencil label is thought to be the work of an herbarium assistant, ca. 1870, and the date 1838 is probably erroneous.] [Coordinates are for the River Raisin at Dundee]", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}