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": ""}
  uu`  MICHAEL J. OLDHAM   Potentilla %k;t   ETL) perth  ARGENTEA sWwp   +h Canada  _ 7I> 1196774    Potentilla argentea @  ROSALES YHs:  1993-07-27 <k25      + ` 15269a   x,N ROSACEAE ontario $b     4T_q STRATFORD CITY MUN. TWP., STRATFORD RAILWA YARD, 1.0 KM SE OF STRATFORD POST OFFICE  l. elu  
{"catalogNumber": "1196774", "order": "Rosales", "family": "Rosaceae", "scientificName": "Potentilla argentea", "scientificNameAuthorship": "L.", "genus": "Potentilla", "subgenus": "", "specificEpithet": "argentea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham", "recordNumber": "15269a", "verbatimEventDate": "1993-07-27", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Perth", "municipality": "", "locality": "Stratford City Mun. Twp., Stratford railway yard, 1.0 km SE of Stratford Post Office", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}