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": ""}
    SE. OF MILAN B          MICHIGAN  , Betty M. Robertson 374      Xanhium strumarium c>*       strumarium tD     #3y asterales   MONROE  mS  1939-09-19 bI 
{"catalogNumber": "", "order": "Asterales", "family": "", "scientificName": "Xanthium strumarium", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "strumarium", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Betty M. Robertson", "recordNumber": "374", "verbatimEventDate": "1939-09-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Monroe", "municipality": "", "locality": "SE. of Milan", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}