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": ""}
   W8 ASTERACEAE    9;C_v MICHIGAN   : frequent in damp sand at south edge of dry bed of ntermittent stream,   gyL 922 l. o  perfoliatum  ?v   ~Ud2T 46 United States M_   [b]n 1981-08-28  N eupatorium perfoliatum     eupatorium d,R  ROY E. GEREAU j Fgl   Asteraleqs j*    ,U1A -83.66667   Lh[ t41n, r6e, nw1/4se1/4 sec. 18 drummond island;
{"catalogNumber": "", "order": "Asterales", "family": "Asteraceae", "scientificName": "Eupatorium perfoliatum", "scientificNameAuthorship": "L.", "genus": "Eupatorium", "subgenus": "", "specificEpithet": "perfoliatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Roy E. Gereau", "recordNumber": "922", "verbatimEventDate": "1981-08-28", "habitat": "Frequent in damp sand at south edge of dry bed of intermittent stream,", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "T41N, R6E, NW1/4SE1/4 Sec. 18 Drummond Island;", "decimalLatitude": "46", "decimalLongitude": "-83.66667", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}