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": ""}
purpureum f q,o   n[x[_ ASTERACEAE  0~ @ ASTERALES    ?-  zane b. carothers & winifred o. moore   -83.761442 ]   EUTROCHIUM r  WASHTENAW MZ1    (L.) E. E. LAMONT ]V:       1954-08-23 b    42.274407 2VL     UNITED STATES OJJ~ 
{"catalogNumber": "", "order": "Asterales", "family": "Asteraceae", "scientificName": "", "scientificNameAuthorship": "(L.) E. E. Lamont", "genus": "Eutrochium", "subgenus": "", "specificEpithet": "purpureum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Zane B. Carothers & Winifred O. Moore", "recordNumber": "", "verbatimEventDate": "1954-08-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "42.274407", "decimalLongitude": "-83.761442", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}