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": ""}
"frequent;" XcCd    $_ 8W Helianthus tuberosus    /U 1986-09-09   Asterales xR   >XU shaded roadbank;   K l. Michigan  cO*  25831 <&[)  asteraceae Q    )= 1254264    allison w. cusick P(~`    x=# hillsdale   helianthus q   
{"catalogNumber": "1254264", "order": "Asterales", "family": "Asteraceae", "scientificName": "Helianthus tuberosus", "scientificNameAuthorship": "L.", "genus": "Helianthus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Allison W. Cusick", "recordNumber": "25831", "verbatimEventDate": "1986-09-09", "habitat": "shaded roadbank;", "occurrenceRemarks": "\"frequent;\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Hillsdale", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}