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 ~vgw6   rigidus a   L( f SIMCOE  7X 1978-08-03        V~6 ANTON A. REZNICEK  =YT* (CASS.) DESF.  ONTARIO 0 ~    |+ canada   Y v/ H+ELIANTHUS contact um herbarium g#   4829 >bU47    ASTERALES 5Zco    L) HELIANTHUS RIGIDUS
{"catalogNumber": "", "order": "Asterales", "family": "Asteraceae", "scientificName": "Helianthus rigidus", "scientificNameAuthorship": "(Cass.) Desf.", "genus": "Helianthus", "subgenus": "", "specificEpithet": "rigidus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Anton A. Reznicek", "recordNumber": "4829", "verbatimEventDate": "1978-08-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Simcoe", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}