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": ""}
senecio M   W  UNITED STATES  FT1w GRPM 50992    c INTEGERRIMUS  EN Senecio integerrimus var. integerrimus s.n. kRR<  WET PLACES Dd)L    s<my GOODHUE  e$@8D j.l. scofield  1893-07   :J  Asterales H|   c 1539439    jP o var.  zX CANNON FALLS     e asteraceae  ;gQ minnesota  integerrimus qPF    
{"catalogNumber": "1539439", "order": "Asterales", "family": "Asteraceae", "scientificName": "Senecio integerrimus var. integerrimus", "scientificNameAuthorship": "", "genus": "Senecio", "subgenus": "", "specificEpithet": "integerrimus", "verbatimTaxonRank": "var.", "infraspecificEpithet": "integerrimus", "identifiedBy": "", "recordedBy": "J.L. Scofield", "recordNumber": "s.n.", "verbatimEventDate": "1893-07", "habitat": "Wet places", "occurrenceRemarks": "GRPM 50992", "associatedTaxa": "", "country": "United States", "stateProvince": "Minnesota", "county": "Goodhue", "municipality": "", "locality": "Cannon Falls", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}