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": ""}
   125411 x           CALVIN H. KAUFFMAN  /z ASTERALES  DNI[ SUBSP.   @ HELIANTHUS GIGANTEUS SUBSP. GIGANTEUS giga nteus J+   F helianthus OTTAWA       42.78629 2v    M 1910-08-04  %$OR COMMON IN MARSHES OF  
{"catalogNumber": "1254111", "order": "Asterales", "family": "", "scientificName": "Helianthus giganteus subsp. giganteus", "scientificNameAuthorship": "", "genus": "Helianthus", "subgenus": "", "specificEpithet": "giganteus", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Calvin H. Kauffman", "recordNumber": "", "verbatimEventDate": "1910-08-04", "habitat": "Common in marshes of", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Ottawa", "municipality": "", "locality": "", "decimalLatitude": "42.78629", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}