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": ""}
MICHAEL J. OLDHAM $l.    N:/ * RAINY RIVER       ib CANADA   x Cirsium DISCOLOR jV%cc   17965 +I   P ^ (MUHL. EX WILLD.) SPRENG.  D1S< 1441930  @xD Cirsium discolor   1 asterales  % Z 1995-08-08   !yC ontario Asteraceae N~      
{"catalogNumber": "1441930", "order": "Asterales", "family": "Asteraceae", "scientificName": "Cirsium discolor", "scientificNameAuthorship": "(Muhl. ex Willd.) Spreng.", "genus": "Cirsium", "subgenus": "", "specificEpithet": "discolor", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham", "recordNumber": "17965", "verbatimEventDate": "1995-08-08", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Rainy River", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}