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": ""}
MONROE 9*WWs    !^ SE. of Milan -83.677 73  125859 ~  L. co.,     r;u  1939-09-19  xanthium `  9 v:ndi XANTHIUM STRUMARIUM  i@@J betty m. robertson   = asterales  !;Ur 374  >  michigan     asteraceae V?z=U   k z. ALONG DRIED RIVER BANK, WOODS 42.0764 !   Pi? strumarium   
{"catalogNumber": "1258359", "order": "Asterales", "family": "Asteraceae", "scientificName": "Xanthium strumarium", "scientificNameAuthorship": "L.", "genus": "Xanthium", "subgenus": "", "specificEpithet": "strumarium", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Betty M. Robertson", "recordNumber": "374", "verbatimEventDate": "1939-09-19", "habitat": "Along dried river bank, woods", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Monroe", "municipality": "", "locality": "SE. of Milan", "decimalLatitude": "42.0764", "decimalLongitude": "-83.677", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}