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": ""}
     3x^ (L.) Besser    zZ+ 41.97905  MICHIGAN No6  palustris lNKCg   0Td 1998-06-03   :  brassicaceae  6ym  Rorippa  1- ROBERT W. SMITH  e*[ sw of centennial rd. & exelby hwy., ridgeway twp. t6sr5es9, ne qtr of nw qtr  railroad ditch 6+?        yL UNITED STATES BRASSICALES E  
{"catalogNumber": "", "order": "Brassicales", "family": "Brassicaceae", "scientificName": "", "scientificNameAuthorship": "(L.) Besser", "genus": "Rorippa", "subgenus": "", "specificEpithet": "palustris", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert W. Smith", "recordNumber": "", "verbatimEventDate": "1998-06-03", "habitat": "railroad ditch", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "sw of Centennial Rd. & Exelby Hwy., Ridgeway Twp. T6SR5ES9, ne qtr of nw qtr", "decimalLatitude": "41.97905", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}