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 L#_O     dhVv "ESTABLISHED FROM A NEIGHBORING GARDEN FOR 5 YEARS." "THIS PLANT WAS FIRST GROWING IN A GARDEN NEAR WHERE IT HAS NOW ESTABLISHED ITSELF. I HAVE WATCHED WITH GEAT INTEREST ITS SPREAD OVER ABOUT 200 YARDS IN THE LAST 3 YEARS."    MICHIGAN 4               OcF 1940-10-23      
{"catalogNumber": "", "order": "", "family": "Asteraceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1940-10-23", "habitat": "", "occurrenceRemarks": "\"Established from a neighboring garden for 5 years.\" \"This plant was first growing in a garden near where it has now established itself. I have watched with great interest its spread over about 200 yards in the last 3 years.\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}