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": ""}
    UNIVERSITY OF MICHIGAN BOTANICAL GARDENS, DIXBORO SIITE, 4.5 MI. NORTHEAST OF ANN ARBOR. RIVER WOODS AREA. [A 1958 MAP OF UM BOTANICAL GARDENS INDICATES ÂRIVER-WOODSÂ EXTENDING FOR ABOUT 0.7 MI ALONG FLEMING CREEK AT APPROX. LAT. 42.3030 LONG -83.6583.] 4Sgnh            Sv United States  42.300243 (G        v)s G Michigan   1476450 `_^s  
{"catalogNumber": "1476450", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi. northeast of Ann Arbor. River Woods area. [A 1958 map of UM Botanical Gardens indicates \u00e2\u0080\u009cRiver-woods\u00e2\u0080\u009d extending for about 0.7 mi along Fleming Creek at approx. Lat. 42.3030 Long -83.6583.]", "decimalLatitude": "42.300243", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}