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": ""}
  a7LK Robert W. Smith  41.882013 _^   michigan +   WPW Crataegus   SANDY FIELD. Bi!  margaretta    =j     G s.n. Rosaceae     LENAWEE      j<$ ROSALES  d`IY+ ashe   Q- MADISON TWP., W. O BALDWIN HWY., 0.2 MI. N. OF CADMUS RD.  i P Crataegus margaretta 1465846rJnz   UNITED STATES x  1983-05-21 q*A  -84.053056 eG_ 
{"catalogNumber": "1465846", "order": "Rosales", "family": "Rosaceae", "scientificName": "Crataegus margaretta", "scientificNameAuthorship": "Ashe", "genus": "Crataegus", "subgenus": "", "specificEpithet": "margaretta", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert W. Smith", "recordNumber": "s.n.", "verbatimEventDate": "1983-05-21", "habitat": "Sandy field.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Lenawee", "municipality": "", "locality": "Madison Twp., W. of Baldwin Hwy., 0.2 mi. N. of Cadmus Rd.", "decimalLatitude": "41.882013", "decimalLongitude": "-84.053056", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}