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": ""}
    WWtz6 md-flat  9  ASTERACEAE Warren Woods !)F         1252447  h      1920-09-11 L,     bidens vulgata +da,s   SdP -86.626812     Bidens 2[l]_ 
{"catalogNumber": "1252447", "order": "", "family": "Asteraceae", "scientificName": "Bidens vulgata", "scientificNameAuthorship": "", "genus": "Bidens", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1920-09-11", "habitat": "Mud-flat", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Warren Woods", "decimalLatitude": "", "decimalLongitude": "-86.626812", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}