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": ""}
 1950-07-23 #H;     howard twp ,lYyn   trifoliatum /    B/mZ red and white oak pastured slope   [V George W. Parmelee   H b?l THASPIUM        MICHIGAN c    F UNITED STATES   (L.) A. GRAY $=?# 
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "(L.) A. Gray", "genus": "Thaspium", "subgenus": "", "specificEpithet": "trifoliatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George W. Parmelee", "recordNumber": "", "verbatimEventDate": "1950-07-23", "habitat": "Red and white oak pastured slope", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Howard Twp", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}