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": ""}
 1993-09-29 #,      Rubus hispidus G@D13  15845 ]@m  RUBUS CAi   N+3T M. J. OLDHAM & R. VANDERJEUGD  ~y Elgin        ontario 1#eU   !zY2 M. P. WIDRLECHNER  rosacea MAE     (]k ROSALES  Contact UM Herbarium    
{"catalogNumber": "", "order": "Rosales", "family": "Rosaceae", "scientificName": "Rubus hispidus", "scientificNameAuthorship": "", "genus": "Rubus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "M. P. Widrlechner", "recordedBy": "M. J. Oldham & R. Vanderjeugd", "recordNumber": "15845", "verbatimEventDate": "1993-09-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Ontario", "county": "Elgin", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}