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": ""}
 1538184 &)    canadensis       5 GRPM 44873 S.N. /f  MARSHALL N    1jJ asteraceae   M (L.) CRONQUIST    @ conyza     1891-09-24 >N   ]ON UNITED STATES  A.B. SEYMOUR 8k>lW    W Conyza canadensis
{"catalogNumber": "1538184", "order": "", "family": "Asteraceae", "scientificName": "Conyza canadensis", "scientificNameAuthorship": "(L.) Cronquist", "genus": "Conyza", "subgenus": "", "specificEpithet": "canadensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A.B. Seymour", "recordNumber": "s.n.", "verbatimEventDate": "1891-09-24", "habitat": "", "occurrenceRemarks": "GRPM 44873", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Marshall", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}