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": ""}
      r=50 oakland   GwK  John M. Sutton     42.47652  X   LAURACE4E BU   qxGhq albidum Michigan 4w   T?` DETROIT ZOO  B| Laurales s.n. u b     -83.14909   H9 1916-06-17    
{"catalogNumber": "", "order": "Laurales", "family": "Lauraceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "albidum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John M. Sutton", "recordNumber": "s.n.", "verbatimEventDate": "1916-06-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Oakland", "municipality": "", "locality": "Detroit Zoo", "decimalLatitude": "42.47652", "decimalLongitude": "-83.14909", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}