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": ""}
ASTERACEAE d     C var.    C): 43.615687   s~7 : Michigan PETASITES FRIGIDUS VAR. PALMATUS 4   w;BQ PETASITES swampy ground tmklM  asterales =     1255949    1914-05-02 #PSx     palmatus  2Fev    i~ aMidland   ^w frigidus -84.247172 Y/;?9  (AITON) CRONQUIST fkj   united states ll;  
{"catalogNumber": "1255949", "order": "Asterales", "family": "Asteraceae", "scientificName": "Petasites frigidus var. palmatus", "scientificNameAuthorship": "(Aiton) Cronquist", "genus": "Petasites", "subgenus": "", "specificEpithet": "frigidus", "verbatimTaxonRank": "var.", "infraspecificEpithet": "palmatus", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1914-05-02", "habitat": "Swampy ground", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Midland", "decimalLatitude": "43.615687", "decimalLongitude": "-84.247172", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}